# 2019 in paleoichthyology

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This list of fossil fishes described in 2019 is a list of new taxa of jawless vertebrates, placoderms, acanthodians, fossil cartilaginous fishes, bony fishes, and other fishes of every kind that were described during the year 2019, as well as other significant discoveries and events related to paleoichthyology that occurred in 2019.

## New taxa
### Jawless vertebrates

| Name | Novelty | Status | Authors | Age | Type locality | Country | Notes |
| Archegonaspis bashkirica | Sp. nov | Valid | Märss | Silurian (Ludlow) | | Russia ( Bashkortostan) | A member of the family Cyathaspididae. |
| Cyathaspis alexanderi | Sp. nov | Valid | Märss | Silurian | Tabuska Beds | Russia ( Chelyabinsk Oblast) | A member of the family Cyathaspididae. |
| Jiaoyu | Gen. et sp. nov | Valid | Liu et al. | Silurian | Kezirtag formation | China | A member of Galeaspida of uncertain phylogenetic placement. The type species is J. imperfectus. |
| Parathelodus liaokuoensis | Sp. nov | Valid | Cui et al. | Devonian (Lochkovian) | Xishancun Formation Xitun Formation | China | A thelodont belonging to the family Coelolepidae. Announced in 2019; the final version of the article naming it was published in 2020. |
| Parathelodus wangi | Sp. nov | Valid | Cui et al. | Devonian (Lochkovian) | Xishancun Formation Xitun Formation | China | A thelodont belonging to the family Coelolepidae. Announced in 2019; the final version of the article naming it was published in 2020. |
| Parathelodus xitunensis | Sp. nov | Valid | Cui et al. | Devonian (Lochkovian) | Xitun Formation | China | A thelodont belonging to the family Coelolepidae. Announced in 2019; the final version of the article naming it was published in 2020. |
| Tethymyxine | Gen. et sp. nov | Valid | Miyashita et al. | Late Cretaceous (Cenomanian) | Hjoula Lagerstätte | Lebanon | A hagfish. The type species is T. tapirostrum. |
| Tolypelepis bedovensis | Sp. nov | Valid | Märss | Late Silurian | Krasnaya Bukhta Formation | Russia ( Krasnoyarsk Krai) | A member of the family Cyathaspididae. |
| Xiyuaspis | Gen. et comb. nov | Junior homonym | Liu et al. | Silurian | Tataertag Formation | China | A member of Galeaspida belonging to the group Hanyangaspidida and to the family Xiushuiaspidae. The type species is "Nanjiangaspis" zhangi Lu et al. (2007). The generic name is preoccupied by Xiyuaspis Zhang (1985); Shan et al. (2023) coined a replacement name Xiyuichthys. |

### Placoderms

| Name | Novelty | Status | Authors | Age | Type locality | Country | Notes |
| Asterolepis alticristata | Sp. nov | Valid | Downs et al. | Devonian (Frasnian) | Fram Formation | Canada ( Nunavut) | An antiarch in Asterolepis |
| Colombialepis | Gen. et sp. nov | Valid | Olive et al. | Late Devonian | Cuche Formation | Colombia | A member of Antiarchi, superfamily Asterolepidoidei. Genus includes new species C. villarroeli. |
| Colombiaspis | Gen. et sp. nov | Valid | Olive et al. | Late Devonian | Cuche Formation | Colombia | A member of Arthrodira, family Groenlandaspidae. Genus includes new species C. rinconensis. |
| Meeksiella | Gen. et sp. nov | Valid | Trinajstic et al. | Devonian (Frasnian) | Snetnya Gora Beds | Estonia  Latvia  Russia ( Pskov Oblast) | A member of Ptyctodontida. The type species is "Chelyophorus" pskovensis Obruchev (1947). |

### Acanthodians

| Name | Novelty | Status | Authors | Age | Type locality | Country | Notes | Images |
| Cheiracanthus peachi | Sp. nov | Valid | Den Blaauwen, Newman & Burrow | Devonian (Givetian) | Mey Flagstone Formation Rousay Flagstone Formation | United Kingdom | | |
| Serradentus | Gen. et sp. nov | | Newman, Burrow & Den Blaauwen | Devonian (Givetian) | Tordalen Formation | Germany  Norway | A member of Ischnacanthiformes. The type species is S. armstrongi. | |

### Cartilaginous fishes

| Name | Novelty | Status | Authors | Age | Type locality | Country | Notes |
| Antiquaobatis | Gen. et sp. nov | Valid | Stumpf & Kriwet | Early Jurassic (Pliensbachian) | | Germany | A member of Rajiformes of uncertain phylogenetic placement. The type species is A. grimmenensis. |
| Asflapristis | Gen. et sp. nov | Valid | Villalobos-Segura et al. | Late Cretaceous (Turonian) | Akrabou Formation | Morocco | A member of Sclerorhynchoidei belonging to the family Ptychotrygonidae. Genus includes new species A. cristadentis. |
| Cantioscyllium clementsi | Sp. nov | Valid | Case et al. | Late Cretaceous (Campanian) | Bladen Formation | United States ( North Carolina) | A member of the family Ginglymostomatidae. |
| Carcharhinus mancinae | Sp. nov | Valid | Ebersole, Cicimurri & Stringer | Eocene (Bartonian) | Gosport Sand Lisbon Formation | United States ( Alabama) | A species of Carcharhinus. |
| Carcharhinus underwoodi | Sp. nov | Valid | Samonds et al. | Eocene | Mahajanga Basin | Madagascar | A species of Carcharhinus. |
| Carcharias dominguei | Sp. nov | Valid | Cappetta, Morrison & Adnet | Late Cretaceous (Campanian) | Northumberland Formation | Canada ( British Columbia) | A species of Carcharias. |
| Centrosqualus mustardi | Sp. nov | Valid | Cappetta, Morrison & Adnet | Late Cretaceous (Campanian) | Northumberland Formation | Canada ( British Columbia) | A member of the family Squalidae. |
| Chlamydoselachus balli | Sp. nov | Valid | Cappetta, Morrison & Adnet | Late Cretaceous (Campanian) | Northumberland Formation | Canada ( British Columbia) | A species of Chlamydoselachus. |
| Cretalamna feldmanni | Sp. nov | Valid | Hoganson, Erickson & Holland | Late Cretaceous (Maastrichtian) | Fox Hills Formation | United States ( North Dakota) | |
| Cretodus houghtonorum | Sp. nov | Valid | Shimada & Everhart | Late Cretaceous (Turonian) | Carlile Shale | United States ( Kansas) | A mackerel shark belonging to the family Pseudoscapanorhynchidae. |
| Dasyatis northdakotaensis | Sp. nov | Valid | Hoganson, Erickson & Holland | Late Cretaceous (Maastrichtian) | Fox Hills Formation | United States ( North Dakota) | A species of Dasyatis. |
| Diprosopovenator | Gen. et sp. nov | Valid | Stumpf, Scheer & Kriwet | Late Cretaceous (Cenomanian) | Hesseltal Formation | Germany | A member of Carcharhiniformes belonging to the new family Pseudoscyliorhinidae. The type species is D. hilperti. |
| Dykeius | Gen. et sp. nov | Valid | Cappetta, Morrison & Adnet | Late Cretaceous (Campanian) | Northumberland Formation | Canada ( British Columbia) | A member of the family Chlamydoselachidae. The type species is D. garethi. |
| Florenceodon | Gen. et sp. nov | Valid | Cappetta, Morrison & Adnet | Late Cretaceous (Campanian) | Northumberland Formation | Canada ( British Columbia) | A member of Carcharhiniformes belonging to the new family Florenceodontidae. Genus includes new species F. johnyi. |
| Galagadon | Gen. et sp. nov | Valid | Gates, Gorscak & Makovicky | Late Cretaceous (Maastrichtian) | Hell Creek Formation | United States ( South Dakota) | A carpet shark. The type species is G. nordquistae. |
| Glencartius | Gen. et comb. nov | Valid | Ginter & Skompski | Carboniferous (Viséan) | | Poland  United Kingdom | A member of Ctenacanthiformes of uncertain phylogenetic placement. The type species is "Ctenacanthus" costellatus Traquair (1884). |
| Gydoselache | Gen. et sp. nov | Valid | Maisey et al. | Devonian (Emsian) | Gydo Formation | South Africa | A cartilaginous fish of uncertain phylogenetic placement, related to Pucapampella and assigned to the new family Pucapampellidae. The type species is G. oosthuizeni. |
| Hessinodon | Gen. et sp. nov | Valid | Cappetta, Morrison & Adnet | Late Cretaceous (Campanian) | Northumberland Formation | Canada ( British Columbia) | A member of the family Dalatiidae. Genus includes new species H. wardi. |
| Hypolophites beckeri | Sp. nov | Valid | Maisch | Paleocene | Midway Group | United States ( Arkansas) | A member of Myliobatiformes. |
| Isogomphodon aikenensis | Sp. nov | Valid | Cicimurri & Knight | Eocene (Priabonian) | Dry Branch Formation | United States ( South Carolina) | A relative of the daggernose shark. |
| Kimmerobatis | Gen. et sp. nov | Valid | Underwood & Claeson | Late Jurassic (Kimmeridgian) | Kimmeridge Clay | United Kingdom | A member of Batoidea related to Spathobatis. Genus includes new species K. etchesi. |
| Komoksodon | Gen. et sp. nov | Valid | Cappetta, Morrison & Adnet | Late Cretaceous (Campanian) | Northumberland Formation | Canada ( British Columbia) | A member of Hexanchiformes belonging to the new family Komoksodontidae. Genus includes new species K. kwutchakuth. |
| Lessiniabatis | Gen. et sp. nov | Valid | Marramà et al. | Eocene (Ypresian) | Monte Bolca Konservat-Lagerstätte | Italy | A member of Myliobatiformes belonging to the superfamily Dasyatoidea. The type species is L. aenigmatica. |
| Myledaphus araucanus | Sp. nov | Valid | Otero | Late Cretaceous (Maastrichtian) | Arauco Basin | Chile | |
| "Myliobatis" foxhillsensis | Sp. nov | Valid | Hoganson, Erickson & Holland | Late Cretaceous (Maastrichtian) | Fox Hills Formation | United States ( North Dakota) | An eagle ray. |
| Odontorhytis bahariensis | Sp. nov | Valid | Salame & Asan | Eocene (probably Lutetian) | | Egypt | A member of Neoselachii of uncertain phylogenetic placement. |
| Ottangodus | Gen. et sp. nov | Valid | Popov, Delsate & Felten | Middle Jurassic (Bajocian) | | Luxembourg-French border | A chimaera belonging to the family Callorhinchidae. Genus includes new species O. lotharingiae. |
| Paraorthacodus rossi | Sp. nov | Valid | Cappetta, Morrison & Adnet | Late Cretaceous (Campanian) | Northumberland Formation | Canada ( British Columbia) | |
| Phoebodus saidselachus | Gen. et comb. nov | Valid | Frey et al. | Devonian (Famennian) | | Morocco | A species of Phoebodus. |
| Pastinachus kebarensis | Sp. nov | Valid | Adnet et al. | Eocene (late Bartonian) | | Tunisia | A cowtail stingray of Pastinachus. Announced in 2018; the final version of the article naming it was published in 2019. |
| Pristiophorus humboldti | Sp. nov | Valid | Villafaña et al. | Early Miocene | | Chile | A species of Pristiophorus. |
| Pristiophorus pricei | Sp. nov | Valid | Cappetta, Morrison & Adnet | Late Cretaceous (Campanian) | Northumberland Formation | Canada ( British Columbia) | A species of Pristiophorus. |
| Pristiophorus smithi | Sp. nov | Valid | Cappetta, Morrison & Adnet | Late Cretaceous (Campanian) | Northumberland Formation | Canada ( British Columbia) | A species of Pristiophorus. |
| Protocentrophorus steviae | Sp. nov | Valid | Cappetta, Morrison & Adnet | Late Cretaceous (Campanian) | Northumberland Formation | Canada ( British Columbia) | A member of the family Centrophoridae. |
| Protoheptranchias | Gen. et sp. nov | Valid | Cappetta, Morrison & Adnet | Late Cretaceous (Campanian) | Northumberland Formation | Canada ( British Columbia) | A cow shark. Genus includes new species P. lowei. |
| Protolamna ricaurtensis | Sp. nov | Valid | Carrillo-Briceño, Parra & Luque | Early Cretaceous (late Barremian–early Aptian) | Paja Formation | Colombia | A mackerel shark belonging to the family Pseudoscapanorhynchidae. |
| Pseudabdounia | Gen. et comb. nov | Valid | Ebersole, Cicimurri & Stringer | Eocene | Gosport Sand Lisbon Formation Tallahatta Formation | Belgium  United States ( Alabama) | A requiem shark. The type species is "Galeocerdo" recticonus Winkler (1874); genus also includes "Galeorhinus recticonus" claibornensis White (1956) (raised to the rank of a separate species Pseudabdounia claibornensis). |
| Ptychotrygon rostrispatula | Sp. nov | Valid | Villalobos-Segura, Underwood & Ward | Late Cretaceous (Turonian) | | Morocco | |
| Rhinoscymnus clarki | Sp. nov | Valid | Cappetta, Morrison & Adnet | Late Cretaceous (Campanian) | Northumberland Formation | Canada ( British Columbia) | A member of the family Somniosidae. |
| Rolfodon | Gen. et sp. et comb. nov | Valid | Cappetta, Morrison & Adnet | Late Cretaceous to Miocene | Angostura Formation Northumberland Formation Santa Marta Formation | Angola Antarctica  Austria  Canada ( British Columbia)  Ecuador  New Zealand | A member of the family Chlamydoselachidae. The type species is R. ludvigseni; genus also includes "Chlamydoselachus" bracheri Pfeil (1983), "Chlamydoselachus" fiedleri Pfeil (1983), "Chlamydoselachus" thomsoni Richter & Ward (1990), "Chlamydoselachus" goliath Antunes & Cappetta (2002), "Chlamydoselachus" keyesi Mannering & Hiller (2008), "Chlamydoselachus" tatere Consoli (2008) and "Chlamydoselachus" landinii Carrillo-Briceño, Aguilera & Rodriguez (2014). |
| Scymnodalatias kazenobon | Sp. nov | Valid | Nishimatsu & Ujihara | Middle Miocene | Yatsuo Group | Japan | A species of Scymnodalatias. |
| Squaliodalatias savoiei | Sp. nov | Valid | Cappetta, Morrison & Adnet | Late Cretaceous (Campanian) | Northumberland Formation | Canada ( British Columbia) | A member of the family Dalatiidae. |
| Squalus nicholsae | Sp. nov | Valid | Cappetta, Morrison & Adnet | Late Cretaceous (Campanian) | Northumberland Formation | Canada ( British Columbia) | A spurdog. |
| Synechodus dereki | Sp. nov | Valid | Cappetta, Morrison & Adnet | Late Cretaceous (Campanian) | Northumberland Formation | Canada ( British Columbia) | A member of the family Palaeospinacidae. |
| Tethytrygon | Gen. et comb. nov | Valid | Marramà et al. | Eocene (Ypresian) | Monte Bolca | Italy | A whiptail stingray belonging to the subfamily Neotrygoninae; a new genus for "Raja" muricata Volta (1796). |
| Tlalocbatos | Gen. et sp. nov | Valid | Brito, Villalobos-Segura & Alvarado-Ortega | Early Cretaceous | Tlayúa Formation | Mexico | A member of Batoidea related to the banjo rays. Genus includes new species T. applegatei. |
| Xampylodon | Gen. et comb. nov | Valid | Cappetta, Morrison & Adnet | Late Cretaceous (Campanian) | Northumberland Formation | Canada ( British Columbia) | A cow shark. Genus includes "Notidanus" dentatus Woodward (1886). |

### Ray-finned fishes

| Name | Novelty | Status | Authors | Age | Type locality | Country | Notes |
| Acronuroides | Gen. et sp. nov. | Valid | Bannikov, Carnevale & Tyler | Eocene (late Ypresian) | Monte Bolca locality | Italy | A member of Percomorphacea of uncertain phylogenetic placement. The type species is A. eocaenicus. |
| Acropoma aurora | Sp. nov | Valid | Schwarzhans | Mangaorapan to Bortonian | | New Zealand | A species of Acropoma. |
| Ambassis simesi | Sp. nov | Valid | Schwarzhans | Bortonian | | New Zealand | A species of Ambassis. |
| Ampheristus pentlandensis | Sp. nov | Valid | Schwarzhans | Bortonian | | New Zealand | A member of the family Ophidiidae. |
| Antigonia artata | Sp. nov | Valid | Schwarzhans | Waipawan-Heretaungan | | New Zealand | A species of Antigonia. |
| Antimyctophum | Gen. et comb. nov | Valid | Schwarzhans | Clifdenian to Tongaporutuan | | New Zealand | A lanternfish. The type species is "Scopelus" konganaruensis Frost (1933). |
| Archoplites langrellorum | Sp. nov | Valid | Van Tassell & Smith | Pliocene (Blancan) | | United States ( Oregon) | A relative of the Sacramento perch. |
| Ardoreosomus | Gen. et sp. nov | Valid | Romano et al. | Early Triassic (Induan) | Candelaria Formation | United States ( Nevada) | A member of the family Ptycholepidae. Genus includes new species A. occidentalis. |
| Argyripnus oamaruensis | Sp. nov | Valid | Schwarzhans | Otaian and Altonian | | New Zealand | A species of Argyripnus. |
| Argyripnus rapahoensis | Sp. nov | Valid | Schwarzhans | Runangan | | New Zealand | A species of Argyripnus. |
| Arnoglossus lautus | Sp. nov | Valid | Schwarzhans | Duntroonian and Waitakian | | New Zealand | A scaldfish. |
| Arnoglossus purus | Sp. nov | Valid | Schwarzhans | Lillburnian and Waiauan | | New Zealand | A scaldfish. |
| Artediellichthys candelabrum | Sp. nov | Valid | Nazarkin | Miocene | Agnevo Formation | Russia ( Sakhalin Oblast) | A relative of the blackfin hookear sculpin. |
| Artediellus simplex | Sp. nov | Valid | Nazarkin | Miocene | Agnevo Formation | Russia ( Sakhalin Oblast) | A species of Artediellus. |
| Aseraggodes hudsoni | Sp. nov | Valid | Schwarzhans | Altonian | | New Zealand | A species of Aseraggodes. |
| Auchenoceros simplex | Sp. nov | Valid | Schwarzhans | Duntroonian | | New Zealand | A relative of the ahuru. |
| Aulichthys miocaenicus | Sp. nov | Valid | Nazarkin | Miocene (Serravallian–Tortonian) | Agnevo Formation | Russia ( Sakhalin Oblast) | An extinct tubenose. |
| Ausonasynodus | Gen. et sp. nov | Valid | Carnevale et al. | Late Eocene | | Spain | A lizardfish. Genus includes new species A. almerai. |
| Awamoa | Gen. et comb. et sp. nov | Valid | Schwarzhans | Otaian to Opoitian | | New Zealand | A southern sandfish. The type species is "Leptoscopus" progressus Schwarzhans (1980); genus also includes "Leptoscopus" iocosus Schwarzhans (1980) and a new species A. kaawa. |
| Balistes vegai | Sp. nov | Valid | Viñola Lopez, Carr & Lorenzo | Miocene | | Cuba | A species of Balistes. |
| Barathronus nielseni | Sp. nov | Valid | Schwarzhans | Otaian | | New Zealand | A species of Barathronus. |
| Barbalepis | Gen. et comb. nov | Valid | Olive, Taverne & López-Arbarello | Early Cretaceous (Barremian–Aptian) | | Belgium | A member the family Coccolepididae; a new genus for "Coccolepis" macroptera Traquair. |
| Bathycongrus waihaoensis | Sp. nov | Valid | Schwarzhans | Kaiatan | | New Zealand | A member of the family Congridae. Originally described as a species of Bathycongrus, but subsequently transferred to the genus Smithconger. |
| Bathygadus waiohaensis | Sp. nov | Valid | Schwarzhans | Otaian | | New Zealand | A species of Bathygadus. |
| Bembrops aequiformis | Sp. nov | Valid | Schwarzhans | Duntroonian and Waitakian | | New Zealand | A species of Bembrops. |
| Bembrops grenfelli | Sp. nov | Valid | Schwarzhans | Altonian | | New Zealand | A species of Bembrops. |
| Benthosema minutum | Sp. nov | Valid | Schwarzhans | Altonian | | New Zealand | A species of Benthosema. |
| Bidenichthys struthersi | Sp. nov | Valid | Schwarzhans | Altonian | | New Zealand | A species of Bidenichthys. |
| Blachea semeniformis | Sp. nov | Valid | Schwarzhans | Waitakian to Altonian | | New Zealand | A species of Blachea. |
| Bonapartia altidorsalis | Sp. nov | Valid | Schwarzhans | Otaian and Altonian | | New Zealand | A member of the family Gonostomatidae. |
| Brosmophyciops tongarewae | Sp. nov | Valid | Schwarzhans | Mangaorapan-Heretaungan | | New Zealand | A species of Brosmophyciops. |
| Burguklia minichorum | Sp. nov | Valid | Bakaev & Kogan | Permian (Wordian–Capitanian) | | Russia | An early ray-finned fish. Announced in 2019; the final version of the article naming it was published in 2020. |
| Cabindachanos | Gen. et sp. nov | Valid | Taverne et al. | Paleocene (Danian or early Selandian) | | Angola | A member of the family Chanidae. The type species is C. dartevellei. |
| Callionymus hakatarameaensis | Sp. nov | Valid | Schwarzhans | Waitakian | | New Zealand | A species of Callionymus. |
| Callionymus triquetrus | Sp. nov | Valid | Schwarzhans | Altonian | | New Zealand | A species of Callionymus. |
| Candelarialepis | Gen. et sp. nov | Valid | Romano et al. | Early Triassic (Induan) | Candelaria Formation | United States ( Nevada) | A stem-neopterygian belonging to the family Parasemionotidae. Genus includes new species C. argentus. |
| Cavinichthys | Gen. et sp. nov | Valid | Taverne & Capasso | Early Cretaceous (Albian) | Limestones of Pietraroja | Italy | A member of Crossognathiformes belonging to the family Pachyrhizodontidae. The type species is C. pachylepis. |
| Cephalopholis? aotearoa | Sp. nov | Valid | Schwarzhans | Mangaorapan to Bortonian | | New Zealand | Possibly a species of Cephalopholis. |
| Cepola ambifaria | Sp. nov | Valid | Schwarzhans | Otaian to Clifdenian | | New Zealand | A species of Cepola. |
| Ceratoscopelus richardsoni | Sp. nov | Valid | Schwarzhans | Otaian and Altonian | | New Zealand | A species of Ceratoscopelus. |
| Champsodon timaruensis | Sp. nov | Valid | Schwarzhans | Altonian | | New Zealand | A species of Champsodon. |
| Chaunax bucculentus | Sp. nov | Valid | Schwarzhans | Waitakian | | New Zealand | A species of Chaunax. |
| Chaychanus | Gen. et sp. nov | Valid | Cantalice Severiano, Alvarado Ortega & Bellwood | Paleocene | | Mexico | A member of the family Pomacentridae. Genus includes new species C. gonzalezorum. Announced in 2019; the final version of the article naming it was published in 2020. |
| Chrionema salebrosa | Sp. nov | Valid | Schwarzhans | Duntroonian to Altonian | | New Zealand | A species of Chrionema. |
| Coelorinchus divulgatus | Sp. nov | Valid | Schwarzhans | Waitakian to Lillburnian | | New Zealand | A species of Coelorinchus. |
| Coelorinchus pakaurangiensis | Sp. nov | Valid | Schwarzhans | Duntroonian to Otaian | | New Zealand | A species of Coelorinchus. |
| Coelorinchus preaustralis | Sp. nov | Valid | Schwarzhans | Duntroonian to Altonian | | New Zealand | A species of Coelorinchus. |
| Colobodus wushaensis | Sp. nov | Valid | Li et al. | Late Triassic (Carnian) | Falang Formation | China | A member of Perleidiformes. |
| Conger davidsmithi | Sp. nov | Valid | Schwarzhans | Waipawan to Bortonian | | New Zealand | A species of Conger. |
| Conger tokoroa | Sp. nov | Valid | Schwarzhans | Altonian | | New Zealand | A species of Conger. |
| Congopycnodus | Gen. et sp. nov | Valid | Taverne | Middle Jurassic | Stanleyville Formation | Democratic Republic of the Congo | A member of Pycnodontiformes belonging to the superfamily Coccodontoidea. The type species is C. cornutus. |
| Costapycnodus | Gen. et comb. nov | Valid | Taverne, Capasso & Del Re | Early Cretaceous (late Hauterivian-early Barremian) | | Italy | A member of the family Pycnodontidae. The type species is "Coelodus" costae Heckel (1856). |
| Danaphos glomerosus | Sp. nov | Valid | Schwarzhans | Otaian | | New Zealand | A species of Danaphos. |
| Diaphus audax | Sp. nov | Valid | Schwarzhans | Waitakian to Altonian | | New Zealand | A species of Diaphus. |
| Diaphus caurus | Sp. nov | Valid | Schwarzhans & Ohe | Pleistocene (Calabrian) | Hijikata Formation | Japan | A species of Diaphus. |
| Diaphus endoi | Sp. nov | Valid | Schwarzhans & Ohe | Pliocene (Piacenzian) | Shinzato Formation | Japan | A species of Diaphus. |
| Diaphus exilis | Sp. nov | Valid | Schwarzhans | Otaian to Lillburnian | | New Zealand | A species of Diaphus. |
| Diaphus grebneffi | Sp. nov | Valid | Schwarzhans & Ohe | Probably Piacenzian | Nakosi Formation | Fiji | A species of Diaphus. |
| Diaphus huatau | Sp. nov | Valid | Schwarzhans | Clifdenian to Lillburnian | | New Zealand | A species of Diaphus. |
| Diaphus kaiparaensis | Sp. nov | Valid | Schwarzhans | Otaian and Altonian | | New Zealand | A species of Diaphus. |
| Diaphus kakegawaensis | Sp. nov | Valid | Schwarzhans & Ohe | Pleistocene (Gelasian) | Dainichi Formation | Japan | A species of Diaphus. |
| Diaphus manneringi | Sp. nov | Valid | Schwarzhans | Clifdenian to Waiauan | | New Zealand | A species of Diaphus. |
| Diaphus mirus | Sp. nov | Valid | Schwarzhans | Tongaporutuan | | New Zealand | A species of Diaphus. |
| Diaphus nafpaktitisi | Sp. nov | Valid | Schwarzhans & Ohe | Pliocene (Piacenzian) | Nobori Formation | Japan | A species of Diaphus. |
| Diaphus noboriensis | Sp. nov | Valid | Schwarzhans & Ohe | Pliocene (Piacenzian) and Pleistocene (Gelasian) | Dainichi Formation Nobori Formation Shinzato Formation | Japan | A species of Diaphus. |
| Diaphus tenax | Sp. nov | Valid | Schwarzhans | Altonian | | New Zealand | A species of Diaphus. |
| Dibranchus kakahoensis | Sp. nov | Valid | Schwarzhans | Bortonian | | New Zealand | A species of Dibranchus. |
| Diogenichthys rangiauriensis | Sp. nov | Valid | Schwarzhans | Mangapanian | | New Zealand | A species of Diogenichthys. |
| Dipulus certus | Sp. nov | Valid | Schwarzhans | Mangaorapan-Heretaungan | | New Zealand | A species of Dipulus. |
| Dolichopteryx iustus | Sp. nov | Valid | Schwarzhans | Altonian | | New Zealand | A species of Dolichopteryx. |
| Echiodon teres | Sp. nov | Valid | Schwarzhans | Otaian to Clifdenian | | New Zealand | A species of Echiodon. |
| Electrona subasperoides | Sp. nov | Valid | Schwarzhans | Waitakian to Altonian | | New Zealand | A species of Electrona. |
| Ellimma longipectoralis | Sp. nov | Valid | Polck et al. | Early Cretaceous (Aptian) | Barra Velha Formation | Brazil | A member of Clupeomorpha belonging to the group Ellimmichthyiformes and to the family Paraclupeidae. Announced in 2019; the final version of the article naming it was published in 2020. |
| Emmelichthys tennysoni | Sp. nov | Valid | Schwarzhans | Waitakian | | New Zealand | A species of Emmelichthys. |
| Encheliophis strigosus | Sp. nov | Valid | Schwarzhans | Otaian and Altonian | | New Zealand | A species of Encheliophis. |
| Eomyctophum broncus | Sp. nov | Valid | Schwarzhans | Waipawan to Porangan | | New Zealand | A lanternfish. |
| Eomyctophum porokawa | Sp. nov | Valid | Schwarzhans | Bortonian | | New Zealand | A lanternfish. |
| Eosemionotus diskosomus | Sp. nov | Valid | López-Arbarello et al. | Middle Triassic (Ladinian) | Meride Limestone | Italy  Switzerland | A member of Semionotiformes. |
| Eosemionotus minutus | Sp. nov | Valid | López-Arbarello et al. | Middle Triassic (Ladinian) | Meride Limestone | Switzerland | A member of Semionotiformes. |
| Eosemionotus sceltrichensis | Sp. nov | Valid | López-Arbarello et al. | Middle Triassic (Ladinian) | Meride Limestone | Switzerland | A member of Semionotiformes. |
| Epaelops | Gen. et sp. nov | Valid | Alves, Alvarado-Ortega & Brito | Early Cretaceous (Albian) | Tlayúa Formation | Mexico | A member of Elopiformes. Genus includes new species E. martinezi. Announced in 2019; the final version of the article naming it was published in 2020. |
| Epigonus aquilonius | Sp. nov | Valid | Schwarzhans | Otaian and Altonian | | New Zealand | A species of Epigonus. |
| Epigonus opoitiensis | Sp. nov | Valid | Schwarzhans | Opoitian | | New Zealand | A species of Epigonus. |
| Etrumeus carnatus | Sp. nov | Valid | Schwarzhans | Altonian | | New Zealand | A species of Etrumeus. |
| Evynnis abax | Sp. nov | Valid | Schwarzhans | Duntroonian to Altonian | | New Zealand | A member of the family Sparidae. |
| Flagellipinna | Gen. et sp. nov | Valid | Cawley & Kriwet | Late Cretaceous (Cenomanian) | Sannine Formation | Lebanon | A member of Pycnodontiformes belonging to the family Pycnodontidae. The type species is F. rhomboides. |
| Forsterygion jawadi | Sp. nov | Valid | Schwarzhans | Nukumaruan | | New Zealand | A species of Forsterygion. |
| Gadiculus adversus | Sp. nov | Valid | Schwarzhans | Waitakian to Lillburnian | | New Zealand | A species of Gadiculus. |
| Gadiculus pereawa | Sp. nov | Valid | Schwarzhans | Tongaporutuan | | New Zealand | A species of Gadiculus. |
| Galeichthys ohei | Sp. nov | Valid | Schwarzhans | Opoitian to Nukumaruan | | New Zealand | A species of Galeichthys. |
| Gilmourella | Gen. et sp. nov. | Valid | Carnevale & Bannikov | Eocene (late Ypresian) | Monte Bolca locality | Italy | A member of Callionymoidei. The type species is G. minuta. |
| Gnathophis araroa | Sp. nov | Valid | Schwarzhans | Kapitean | | New Zealand | A species of Gnathophis. |
| Gonostoma retunsum | Sp. nov | Valid | Schwarzhans | Otaian and Altonian | | New Zealand | A species of Gonostoma. |
| Grahamichthys frigophila | Sp. nov | Valid | Schwarzhans | Altonian | | New Zealand | A member of the family Thalasseleotrididae. |
| Guus | Gen. et comb. nov. | Valid | Bannikov | Eocene (late Ypresian) | Monte Bolca locality | Italy | A member of the family Tortonesidae. The type species is "Gobius" microcephalus Agassiz (1839). |
| Gyrodus huiliches | Sp. nov | Valid | Gouiric-Cavalli, Remírez & Kriwet | Early Cretaceous (Valanginian–early Hauterivian) | Agrio Formation | Argentina | |
| Harpagifer? morgansi | Sp. nov | Valid | Schwarzhans | Altonian | | New Zealand | Possibly a species of Harpagifer. |
| Hemerocoetes pukunati | Sp. nov | Valid | Schwarzhans | Duntroonian to Altonian | | New Zealand | A species of Hemerocoetes. |
| Hemerocoetes whiroki | Sp. nov | Valid | Schwarzhans | Duntroonian to Altonian | | New Zealand | A species of Hemerocoetes. |
| Hiascoactinus | Gen. et sp. nov | Valid | Kim et al. | Late Triassic | Amisan Formation | South Korea | A member of Redfieldiiformes. Genus includes new species H. boryeongensis. Announced in 2019; the final version of the article naming it was published in 2020. |
| Hintonia robertsi | Sp. nov | Valid | Schwarzhans | Otaian | | New Zealand | A lanternfish. |
| Howella monodens | Sp. nov | Valid | Schwarzhans | Otaian | | New Zealand | A species of Howella. |
| Hygophum acutiventris | Sp. nov | Valid | Schwarzhans | Kapitean | | New Zealand | A species of Hygophum. |
| Ichthyscopus pukeuriensis | Sp. nov | Valid | Schwarzhans | Otaian and Altonian | | New Zealand | A species of Ichthyscopus. |
| Klincigobius | Gen. et comb. et sp. nov | Valid | Bradić-Milinović, Ahnelt & Schwarzhans in Bradić-Milinović et al. | Early Miocene | | Serbia | A member of the family Gobiidae. The type species is "Gobius" serbiensis Gaudant (1998); genus also includes new species K. andjelkovicae. |
| Kradimus | Gen. et sp. nov | Valid | Veysey, Brito & Martill | Late Cretaceous (Turonian) | Akrabou Formation | Morocco | A member of Crossognathiformes. Genus includes new species K. asflaensis. Announced in 2019; the final version of the article naming it was published in 2020. |
| Lactarius primigenius | Sp. nov | Valid | Schwarzhans | Bortonian to Kaiatan | | New Zealand | A relative of the false trevally. |
| Lactarius pusillus | Sp. nov | Valid | Schwarzhans | Otaian and Altonian | | New Zealand | A relative of the false trevally. |
| Laeops undulatus | Sp. nov | Valid | Schwarzhans | Lillburnian | | New Zealand | A species of Laeops. |
| Lampanyctodes transitivus | Sp. nov | Valid | Schwarzhans | Kapitean | | New Zealand | A lanternfish. |
| Lampanyctus popoto | Sp. nov | Valid | Schwarzhans | Otaian and Altonian | | New Zealand | A species of Lampanyctus. |
| Lampanyctus profestus | Sp. nov | Valid | Schwarzhans | Otaian and Altonian | | New Zealand | A species of Lampanyctus. |
| Lampanyctus waiohaensis | Sp. nov | Valid | Schwarzhans | Otaian | | New Zealand | A species of Lampanyctus. |
| Lashanichthys | Gen. et comb. nov | Valid | Xu et al. | Middle Triassic (Anisian) | | China | A member of Ginglymodi assigned to the group Kyphosichthyiformes and to the new family Lashanichthyidae. The type species is "Sangiorgioichthys" sui López-Arbarello et al. (2011); genus also includes "Sangiorgioichthys" yangjuanensis Chen et al. (2014). |
| Latellopsis | Gen. et comb. nov. | Valid | Bannikov & Zorzin | Eocene (late Ypresian) | Monte Bolca locality | Italy | A member of Perciformes of uncertain phylogenetic placement. The type species is "Psettopsis" latellai Bannikov (2005). |
| Lepidorhynchus frosti | Sp. nov | Valid | Schwarzhans | Altonian | | New Zealand | A member of the family Macrouridae. |
| Leptoscopus atavus | Sp. nov | Valid | Schwarzhans | Altonian | | New Zealand | A southern sandfish. |
| Lethrinus? crassiornatus | Sp. nov | Valid | Schwarzhans | Mangaorapan-Heretaungan | | New Zealand | Possibly a species of Lethrinus. |
| Lindoeichthys | Gen. et sp. nov. | Valid | Murray et al. | Late Cretaceous (Maastrichtian) | Scollard Formation | Canada ( Alberta) | A member of Percopsiformes. Genus includes new species L. albertensis. Announced in 2019; the final version of the article naming it was published in 2020. |
| Liparis? hampdenensis | Sp. nov | Valid | Schwarzhans | Bortonian | | New Zealand | Possibly a species of Liparis. |
| Loancorhynchus | Gen. et sp. nov | Valid | Otero | Middle Eocene | Millongue Formation | Chile | A relative of the swordfish. The type species is L. catrillancai. |
| Lophiodes hoi | Sp. nov | Valid | Schwarzhans | Altonian | | New Zealand | A species of Lophiodes. |
| Lophius alveolus | Sp. nov | Valid | Schwarzhans | Altonian | | New Zealand | A species of Lophius. |
| Lophius onokensis | Sp. nov | Valid | Schwarzhans | Mangapanian to Nukumaruan | | New Zealand | A species of Lophius. |
| Lotella matata | Sp. nov | Valid | Schwarzhans | Otaian and Altonian | | New Zealand | A species of Lotella. |
| Lotella pfeili | Sp. nov | Valid | Schwarzhans | Altonian and Clifdenian | | New Zealand | A species of Lotella. |
| Lotella spicata | Sp. nov | Valid | Schwarzhans | Mangaorapan-Heretaungan | | New Zealand | A species of Lotella. |
| Macrurulus depressus | Sp. nov | Valid | Schwarzhans | Bortonian | | New Zealand | A member of the family Merlucciidae. |
| Macrurulus fordycei | Sp. nov | Valid | Schwarzhans | Waipawan-Mangaorapan | | New Zealand | A member of the family Merlucciidae. |
| Maoricottus | Gen. et comb. et 2 sp. nov | Valid | Schwarzhans | Altonian to Lillburnian | | New Zealand | A member of the family Cottidae. The type species is "Cottidarum" impolitus Schwarzhans (1980); genus also includes new species M. calidophilus and M. ovatus. |
| Melamphaes leeae | Sp. nov | Valid | Schwarzhans | Otaian | | New Zealand | A species of Melamphaes. |
| Moradebrichthys | Gen. et sp. nov | Valid | Cartanyà et al. | Middle Triassic (Ladinian) | | Spain | A member of the family Perleididae. Genus includes new species M. vilasecae. |
| Muraenanguilla | Gen. et comb. et 2 sp. nov | Valid | Schwarzhans | Paleocene and Eocene | | Belgium  New Zealand | A member of Anguilloidei of uncertain phylogenetic placement. The type species is Otolithus (Trachini)" thevenini Priem (1906); genus also includes new species M. balegemensis and M. lacinata. |
| Myctophum bortonensis | Sp. nov | Valid | Schwarzhans | Bortonian | | New Zealand | A species of Myctophum. |
| Myctophum tamumuensis | Sp. nov | Valid | Schwarzhans | Clifdenian to Waiauan | | New Zealand | A species of Myctophum. |
| Myctophum tenellum | Sp. nov | Valid | Schwarzhans | Tongaporutuan | | New Zealand | A species of Myctophum. |
| Mystocheilus | Gen. et sp. nov | Valid | Van Tassell & Smith | Pliocene (Blancan) | | United States ( Oregon) | A member of the family Cyprinidae. The type species is M. fresti. |
| Nemadactylus trulliformis | Sp. nov | Valid | Schwarzhans | Altonian | | New Zealand | A species of Nemadactylus. |
| Nemadactylus utoka | Sp. nov | Valid | Schwarzhans | Waitakian | Otekaike Limestone | New Zealand | A species of Nemadactylus. |
| Neobythites turpidus | Sp. nov | Valid | Schwarzhans | Runangan | | New Zealand | A species of Neobythites. |
| Nezumia morgansi | Sp. nov | Valid | Schwarzhans | Bortonian and Kaiatan | | New Zealand | A species of Nezumia. |
| Notoconger | Gen. et 2 sp. nov | Valid | Schwarzhans | Runangan to Altonian | | New Zealand | A member of the family Congridae. The type species is N. hesperis; genus also includes N. devexus. |
| Notoscopelus effertus | Sp. nov | Valid | Schwarzhans | Kapitean | | New Zealand | A species of Notoscopelus. |
| Notoscopelus praejaponicus | Sp. nov | Valid | Schwarzhans & Ohe | Pleistocene (Calabrian) | Chinen Formation Hijikata Formation | Japan | A species of Notoscopelus. |
| Opistognathus wharekuriensis | Sp. nov | Valid | Schwarzhans | Duntroonian | | New Zealand | A species of Opistognathus. |
| Oreochromimos | Gen. et sp. nov | | Penk et al. | Miocene | Ngorora Formation | Kenya | A cichlid belonging to the tribe Oreochromini. The type species is O. kabchorensis. |
| Padangia | Gen. et comb. nov | Valid | Murray | Probably Eocene | | Indonesia | A member of the family Cyprinidae. Genus includes "Sardinioides" amblyostoma von der Marck (1876). |
| Panturichthys grenfelli | Sp. nov | Valid | Schwarzhans | Otaian | | New Zealand | A species of Panturichthys. |
| Paralabrus | Gen. et sp. nov. | Valid | Bannikov & Zorzin | Eocene (late Ypresian) | Monte Bolca locality | Italy | Possibly a wrasse. The type species is P. rossiae. |
| Parapercis bispicatus | Sp. nov | Valid | Schwarzhans | Otaian and Altonian | | New Zealand | A species of Parapercis. |
| Parapercis depressidorsalis | Sp. nov | Valid | Schwarzhans | Waitakian to Altonian | | New Zealand | A species of Parapercis. |
| Parapercis fatoides | Sp. nov | Valid | Schwarzhans | Otaian | | New Zealand | A species of Parapercis. |
| Parapercis pareoraensis | Sp. nov | Valid | Schwarzhans | Altonian | | New Zealand | A species of Parapercis. |
| Parapercis richardsoni | Sp. nov | Valid | Schwarzhans | Waipawan to Porangan | | New Zealand | A species of Parapercis. |
| Parapercis waiwaia | Sp. nov | Valid | Schwarzhans | Opoitian | | New Zealand | A species of Parapercis. |
| Parascombrops giganteus | Sp. nov | Valid | Schwarzhans | Mangaorapan | | New Zealand | A member of the family Acropomatidae. |
| Parascombrops schwarzhansi | Sp. nov | Valid | Van Hinsbergh & Helwerda | Late Pliocene to early Pleistocene | | Philippines | A member of the family Acropomatidae. |
| Paraulopus rallus | Sp. nov | Valid | Schwarzhans | Bortonian | | New Zealand | A species of Paraulopus. |
| Pelargorhynchus grandis | Sp. nov | | Wallaard et al. | Late Cretaceous (Maastrichtian) | Maastricht Formation | Netherlands | A member of Aulopiformes belonging to the family Dercetidae. |
| Pempheris hurupiensis | Sp. nov | Valid | Schwarzhans | Tongaporutuan | Hurupi Formation | New Zealand | A species of Pempheris. |
| Phractocephalus yaguaron | Sp. nov | Valid | Bogan & Agnolín | Late Miocene | | Argentina | A relative of the redtail catfish. |
| Physiculus beui | Sp. nov | Valid | Schwarzhans | Otaian and Altonian | | New Zealand | A species of Physiculus. |
| Platycephalus? iaiunus | Sp. nov | Valid | Schwarzhans | Mangaorapan to Bortonian | | New Zealand | Possibly a species of Platycephalus. |
| Platycephalus? riremoana | Sp. nov | Valid | Schwarzhans | Runangan | | New Zealand | Possibly a species of Platycephalus. |
| Platysiagum sinensis | Sp. nov | Valid | Wen et al. | Middle Triassic (Anisian) | Guanling Formation | China | |
| Protomyctophum ahunga | Sp. nov | Valid | Schwarzhans | Altonian | | New Zealand | A species of Protomyctophum. |
| Pseudaequalobythites | Gen. et sp. et comb. nov | Valid | Schwarzhans | Paleocene and Eocene | | Belgium  France  Germany  New Zealand  United Kingdom | A member of the family Ophidiidae. The type species is P. biplex; genus also includes "Otolithus" hilgendorfi Koken (1891). |
| Pseudanthias multicrenatus | Sp. nov | Valid | Schwarzhans | Mangaorapan to Bortonian | | New Zealand | A species of Pseudanthias. |
| Pseudocaranx? pertenuis | Sp. nov | Valid | Schwarzhans | Altonian | | New Zealand | Possibly a species of Pseudocaranx. |
| Pseudophycis muringa | Sp. nov | Valid | Schwarzhans | Lillburnian | | New Zealand | A species of Pseudophycis. |
| Pterygotrigla stewarti | Sp. nov | Valid | Schwarzhans | Otaian and Altonian | | New Zealand | A species of Pterygotrigla. |
| Pteronisculus nevadanus | Sp. nov | Valid | Romano et al. | Early Triassic (Induan) | Candelaria Formation | United States ( Nevada) | Possibly a member of the family Turseoidae. |
| Pycnodus multicuspidatus | Sp. nov | Valid | Vullo et al. | Paleocene (Thanetian) | | Morocco | |
| Quasinectes | Gen. et sp. nov. | Valid | Bannikov & Zorzin | Eocene (late Ypresian) | Monte Bolca locality | Italy | A member of Perciformes of uncertain phylogenetic placement. The type species is Q. durello. |
| Rebekkachromis | Gen. et 2 sp. nov | Valid | Kevrekidis, Valtl & Reichenbacher in Kevrekidis et al. | Miocene | Ngorora Formation | Kenya | A cichlid belonging to the subfamily Pseudocrenilabrinae and the tribe Oreochromini. The type species is R. ngororus; genus also includes R. kiptalami. |
| Rhamphogobius | Gen. et sp. et comb. nov | Valid | Bradić-Milinović, Ahnelt & Schwarzhans in Bradić-Milinović et al. | Early Miocene | | Croatia  Germany  Serbia  Switzerland | A member of the family Gobiidae. The type species is R. varidens; genus also includes "Gobius" doppleri Reichenbacher (1993), "Gobius" gregori Reichenbacher (1993) and "Gobius" helvetiae Salis (1967). |
| Rhynchoconger otaianus | Sp. nov | Valid | Schwarzhans | Waipawan-Mangaorapan | | New Zealand | A species of Rhynchoconger. |
| Saccogaster parengarenga | Sp. nov | Valid | Schwarzhans | Otaian to Clifdenian | | New Zealand | A species of Saccogaster. |
| Sardinella claviformis | Sp. nov | Valid | Schwarzhans | Altonian | | New Zealand | A species of Sardinella. |
| Sardinella lintriculus | Sp. nov | Valid | Schwarzhans | Altonian | | New Zealand | A species of Sardinella. |
| Schernfeldfuro | Gen. et sp. nov | Valid | Ebert | Late Jurassic | | Germany | A member of Halecomorphi. Genus includes new species S. uweelleri. |
| Scleropages sanshuiensis | Sp. nov | Valid | Zhang | Early Eocene | Huachong Formation | China | A species of Scleropages. Announced in 2019; the final version of the article naming it was published in 2020. |
| Scopelarchoides neamticus | Sp. nov | Valid | Grădianu et al. | Oligocene | Lower Dysodilic Shales Formation | Romania | A pearleye, a species of Scopelarchoides. |
| Scopelosaurus? brevicauda | Sp. nov | Valid | Schwarzhans | Kaiatan | | New Zealand | Possibly species of Scopelosaurus. |
| Sillaginodes albisaxosus | Sp. nov | Valid | Schwarzhans | Altonian | | New Zealand | A member of the family Sillaginidae. |
| Sillago maxwelli | Sp. nov | Valid | Schwarzhans | Bortonian | | New Zealand | A species of Sillago. |
| Sprattus arewhana | Sp. nov | Valid | Schwarzhans | Otaian | | New Zealand | A species of Sprattus. |
| Sundabarbus | Gen. et comb. nov | Valid | Murray | Probably Eocene | Sangkarewang Formation | Indonesia | A member of the family Cyprinidae. Genus includes "Barbus" megacephalus Günther (1876). |
| Symbolophorus moriguchii | Sp. nov | Valid | Schwarzhans & Ohe | Pliocene (Piacenzian) and Pleistocene (Gelasian) | Dainichi Formation Nobori Formation Shinzato Formation | Japan | A species of Symbolophorus. |
| Symbolophorus opononiensis | Sp. nov | Valid | Schwarzhans | Waitakian and Otaian | | New Zealand | A species of Symbolophorus. |
| Symbolophorus tongaporutuensis | Sp. nov | Valid | Schwarzhans | Tongaporutuan | | New Zealand | A species of Symbolophorus. |
| Symphysanodon inamata | Sp. nov | Valid | Schwarzhans | Mangaorapan to Bortonian | | New Zealand | A species of Symphysanodon. |
| Thalasseleotris whatua | Sp. nov | Valid | Schwarzhans | Lillburnian | | New Zealand | A species of Thalasseleotris. |
| Tharsis elleri | Sp. nov | Valid | Arratia, Schultze & Tischlinger | Late Jurassic (Tithonian) | Altmühltal Formation | Germany | A teleost belonging to the family Ascalaboidae. |
| Thiollierepycnodus | Gen. et comb. nov | Valid | Ebert | Late Jurassic | | France  Germany | A member of the family Pycnodontidae; a new genus for Pycnodus wagneri Thiollière (1852). |
| Thryptodus loomisi | Sp. nov | Valid | Shimada | Late Cretaceous (Cenomanian–Turonian) | Britton Formation | United States ( Texas) | A member of the family Plethodidae. |
| Tonganago wharenga | Sp. nov | Valid | Schwarzhans | Waipawan to Bortonian | | New Zealand | A member of the family Congridae. |
| Tongarewa | Gen. et 2 sp. nov | Valid | Schwarzhans | Duntroonian to Altonian | | New Zealand | A threefin blenny. The type species is T. waihaoensis; genus also includes T. clementsi. |
| Toroatherina | Gen. et sp. et comb. nov | Valid | Schwarzhans | Eocene | | New Zealand  United States | An Old World silverside. The type species is T. toroa; genus also includes "Otolithus (Mugilidarum)" debilis Koken (1891). |
| Toxopyge | Gen. et sp. et comb. nov | Valid | Bradić-Milinović, Ahnelt & Schwarzhans in Bradić-Milinović et al. | Early Miocene | | Serbia  Switzerland | A member of the family Gobiidae. The type species is T. campylus; genus also includes "Gobius" longus Salis (1967). |
| Trachyrincus aulax | Sp. nov | Valid | Schwarzhans | Otaian to Tongaporutuan | | New Zealand | A species of Trachyrincus. |
| Tranawuen | Gen. et comb. nov | Valid | Gouiric-Cavalli, Remírez & Kriwet | Early Cretaceous (Valanginian–early Hauterivian) | Agrio Formation | Argentina | A member of Pycnodontiformes. Genus includes "Macromesodon" agrioensis. |
| Trawdenia | Gen. et comb. nov | Valid | Coates & Tietjen | Carboniferous (Pennsylvanian) | | United Kingdom | An early ray-finned fish. The type species is "Rhadinichthys" planti Traquair (1888); genus also includes "Mesopoma" carricki Coates (1993) and "Mesopoma" pancheni Coates (1993). |
| Tunisiaclupea | Gen. et sp. nov | Valid | Boukhalfa et al. | Early Cretaceous (Barremian) | Chotts Basin | Tunisia | A member of Clupeomorpha belonging to the group Ellimmichthyiformes and to the family Paraclupeidae. Genus includes new species T. speratus. |
| Uranoscopus rudis | Sp. nov | Valid | Schwarzhans | Duntroonian | Chatton Formation | New Zealand | A species of Uranoscopus. |
| Uranoscopus tectiformis | Sp. nov | Valid | Schwarzhans | Altonian | | New Zealand | A species of Uranoscopus. |
| Valenciennellus fastigatus | Sp. nov | Valid | Schwarzhans | Otaian and Altonian | | New Zealand | A species of Valenciennellus. |
| Veridagon | Gen. et sp. nov | Valid | Díaz-Cruz, Alvarado-Ortega & Carbot-Chanona | Late Cretaceous (Cenomanian) | Cintalapa Formation | Mexico | A member of Aulopiformes belonging to the family Enchodontidae. Genus includes new species V. avendanoi. |
| Vinciguerria orientalis | Sp. nov | Valid | Nam, Ko & Nazarkin | Middle Miocene | Duho Formation | South Korea | A species of Vinciguerria. |
| Waihaoclupea | Gen. et sp. nov | Valid | Schwarzhans | Mangaorapan to Bortonian | | New Zealand | A member of the family Clupeidae. The type species is W. pinguis. |
| Waitahana | Gen. et comb. nov | Valid | Schwarzhans | Otaian to Waiauan | | New Zealand | A southern sandfish. The type species is "Trachinoideorum" sagittiformis Schwarzhans (1980); genus also includes "Citharus" latisulcatus Frost (1924) and "Trachinoideorum" ultimus Schwarzhans (1980). |
| Waitakia aho | Sp. nov | Valid | Schwarzhans | Mangaorapan to Porangan | | New Zealand | A member of the family Hemerocoetidae. |
| Waitakia proclinens | Sp. nov | Valid | Schwarzhans | Mangaorapan to Bortonian | | New Zealand | A member of the family Hemerocoetidae. |
| Waitakia profunda | Sp. nov | Valid | Schwarzhans | Kaiatan to Runangan | | New Zealand | A member of the family Hemerocoetidae. |
| Xenocephalus otaianus | Sp. nov | Valid | Schwarzhans | Otaian | | New Zealand | A species of Xenocephalus. |
| Yudaiichthys | Gen. et sp. nov | Valid | Xu et al. | Middle Triassic (Anisian) | Guanling Formation | China | A member of Ginglymodi assigned to the group Kyphosichthyiformes and to the new family Lashanichthyidae. The type species is Y. eximius. |
| Zandtfuro | Gen. et sp. nov | Valid | Ebert | Late Jurassic | | Germany | A member of Halecomorphi. Genus includes new species Z. tischlingeri. |
| Zonobythites cornifer | Sp. nov | Valid | Schwarzhans | Porangan and Bortonian | | New Zealand | A member of the family Ophidiidae. |

### Lobe-finned fishes

| Name | Novelty | Status | Authors | Age | Type locality | Country | Notes |
| Anchidipterus | Gen. et sp. nov | Valid | Krupina in Lebedev, Krupina & Linkevich | Devonian (Famennian) | | Russia ( Tver Oblast) | A lungfish. Genus includes new species A. dariae. |
| Clackodus | Gen. et comb. nov | Valid | Smithson, Challands & Smithson | Carboniferous (Serpukhovian) | Clackmannan Group | United Kingdom | A lungfish; a new genus for "Ctenodus" angustulus Traquair. |
| Ctenodus boudariensis | Sp. nov | Valid | Kemp | Carboniferous (Viséan) | Ducabrook Formation | Australia | A lungfish. |
| Isityumzi | Gen. et sp. nov | Valid | Gess & Clement | Devonian (Famennian) | Witpoort Formation | South Africa | A lungfish. The type species is I. mlomomde. |
| Limanichthys | Gen. et sp. nov | Valid | Challands et al. | Carboniferous (Tournaisian) | Ballagan Formation | United Kingdom | A lungfish. Genus includes new species L. fraseri. |
| Rubrognathus | Gen. et sp. nov | Valid | Lebedev & Clément | Devonian (late Givetian–early Frasnian) | Yam-Tesovo Formation | Russia ( Leningrad Oblast) | A member of Elpistostegalia. The type species is R. kuleshovi. |
| Selenodus | Gen. et sp. nov | Valid | Mondéjar-Fernández | Devonian (Eifelian) | | Morocco | An onychodont sarcopterygian. Genus includes new species S. aquesbiae. |
| Whiteia uyenoteruyai | Sp. nov | Valid | Yabumoto et al. | Early Triassic | Middle Sakamena Group | Madagascar | |

### Other fishes

| Name | Novelty | Status | Authors | Age | Type locality | Country | Notes | Images |
| Aberrosquama | Gen. et sp. nov | Valid | Burrow in Burrow et al. | Silurian (probably Gorstian) | Hamelin Formation | Australia | A stem-gnathostome of uncertain phylogenetic placement. The type species is A. occidens. | |

## General research

* Revision of Early Devonian psammosteids described by Beverly Halstead from the so-called "Placoderm Sandstone" (Świętokrzyskie Mountains, Poland) is published by Dec (2019).
* A study on the locomotion of psammosteids, focusing on the influence of the shape of the psammosteid body form on hydrodynamic performance, is published by Dec (2019).
* A study on the anatomy of dermal plates of Astraspis is published by Lemierre & Germain (2019), who report possible evidence of presence of proliferative cartilage in this taxon.
* A study on the anatomy of the circulatory system of the head of Shuyu is published by Gai, Zhu & Donoghue (2019).
* Redescription of Sinogaleaspis shankouensis, based on data from 11 new specimens from the Silurian Xikeng Formation (Jiangxi, China), is published online by Gai et al. (2019).
* A study on the anatomy of the dermal skeleton of Tremataspis mammillata is published by O'Shea, Keating & Donoghue (2019).
* Redescription of Asterolepis orcadensis based on newly collected fossil material is published by Newman, den Blaauwen & Leather (2019).
* A study on the morphology of the jaw elements of a buchanosteoid placoderm specimen ANU V244 from the Early Devonian limestones (~400 Ma) at Burrinjuck, near Canberra (Australia) is published by Hu et al. (2019).
* A specimen of Dunkleosteus terrelli preserving vertebrae fused into a structure known as the synarcual is described from the Devonian Cleveland Shale Member of the Ohio Shale Formation (Ohio, United States) by Johanson et al. (2019).
* A redescription and a study on the phylogenetic relationships of a putative antiarch Silurolepis platydorsalis is published by Zhu, Lu & Zhu (2019), who reinterpret this species as a maxillate placoderm close to Qilinyu.
* New body fossils of Cheiracanthus intricatus, including the first known articulated specimen of this species, are described from the Givetian Tordalen Formation (Spitsbergen, Norway) by Newman, Burrow & den Blaauwen (2019).
* A study on the anatomy of the skeletal elements of the pharynx of Ptomacanthus anglicus, and on its implications for the knowledge of the evolution of the pharynx of jawed vertebrates, is published by Dearden, Stockey & Brazeau (2019).
* Description of fossils of Carboniferous (Mississippian) cartilaginous fishes from the area of Krzeszowice (Poland) is published by Ginter & Złotnik (2019).
* A study on microwear on teeth of Edestus minor, and on its implications for the knowledge of function of teeth of this fish, is published by Itano (2019).
* A revision of species belonging to the genus Edestus is published by Tapanila & Pruitt (2019).
* Discovery of a cast of the holotype of Petalodus ohioensis in the collections of the Yale Peabody Museum of Natural History is reported by Carpenter & Itano (2019), who consider the species Petalodus alleghaniensis to be a junior synonym of P. ohioensis.
* Restudy of a putative bill of an ibis-like bird from the Eocene La Meseta Formation (Antarctica) described by Jadwiszczak, Gaździcki & Tatur (2008) is published by Agnolin, Bogan & Rozadilla (2019), who consider this specimen to be more likely to be a dorsal spine of a chimaeroid cartilaginous fish.
* A study on the anatomy of the skull of Tristychius arcuatus, providing evidence of adaptations for suction feeding, is published by Coates et al. (2019).
* Teeth of a hybodont shark belonging to the genus Asteracanthus, with anatomy indicative of a crushing feeding behaviour, are described from the Upper Jurassic deposits of the Monte Nerone Pelagic Carbonate Platform, in the Umbria-Marche-Sabina Palaeogeographic Domain (Italy) by Citton et al. (2019).
* An association of 58 teeth of Ptychodus anonymus, representing the first occurrence of an associated dentition of this species, is described from the Cenomanian Jetmore Member of the Greenhorn Formation (Kansas, United States) by Hamm (2019).
* Description of new associated skeletal remains of Ischyrhiza mira from the Upper Cretaceous of Tennessee and Alabama and a study on the paleobiology of this species is published by Sternes & Shimada (2019).
* A study on the anatomy and phylogenetic relationships of Promyliobatis gazolai is published by Marramà et al. (2019).
* Fossils of members of the genus Aetomylaeus are described from localities in Peru and Chile by Villafaña et al. (2019), representing the first unambiguous fossil record of this genus from the Neogene of the southeastern Pacific.
* A specimen of the whiptail stingray species Tethytrygon muricatus preserving the uterus bearing four eggs is described from the Eocene of the Monte Bolca locality (Italy) by Fanti, Mazzuferi & Marramà (2019).
* Description of Langhian ray fossils from the Lower Tagus Basin (Portugal) is published by Fialho, Balbino & Antues (2019).
* A study on the taxonomic status and geological age of large shark remains from the Upper Cretaceous of the Castellavazzo locality (Italy) discovered in the 19th century is published by Conte et al. (2019).
* 15 partial skeletons of lamniform sharks, including the largest specimen of Cretoxyrhina mantelli known to date, are described from the Upper Cretaceous Scaglia Rossa Formation (Italy) by Amalfitano et al. (2019), who also review the taxonomic history of C. mantelli.
* A study on teeth histology and mineralization pattern in lamniform sharks, based on data from extant and fossil taxa (including enigmatic galeomorph shark Palaeocarcharias stromeri), is published by Jambura et al. (2019).
* A study on changes of diversity of lamniform sharks throughout their evolutionary history, aiming to determine the causes of their decline in the last 20 million years, is published by Condamine, Romieu & Guinot (2019).
* A study on changes in the presence or absence of lateral cusplets on teeth of members of the genus Carcharocles from the Calvert, Choptank, and St. Marys formations, and on their implications for the transition of shark populations from these formations from a Carcharocles chubutensis-dominated population to one dominated by C. megalodon, is published by Perez et al. (2019).
* A revision and a reevaluation of the reliability of all post-Messinian occurrences of Otodus megalodon in marine strata from western North America, and a study on the timing of extinction of this species, is published by Boessenecker et al. (2019).
* A study on the body size of Otodus megalodon, as inferred from the relationship between the ontogenetic development of teeth and total body length in the great white shark, is published by Shimada (2019).
* Partial forelimb of a rorqual with several shark bite marks is described from the Pliocene Burica Formation (Panama) by Cortés et al. (2019).
* A study on the anatomy of the holotype specimen of a putative Paleocene shark Platyacrodus unicus is published by Bogan, Agnolin & Ezcurra (2019), who reinterpret this specimen as a carapace of a small retroplumid crab belonging to the genus Costacopluma.
* An assemblage of well-preserved isolated teeth of elasmobranchs is described from the late Oligocene of the North Alpine Foreland Basin (Austria) by Feichtinger et al. (2019).
* Description of the deep-sea elasmobranch fauna from the Miocene Yatsuo Group in central Japan, including the first fossil occurrences of the genera Arhynchobatis and Pseudoraja, will be published by Nishimatsu & Ujihara (2019).
* Description of the deep-sea elasmobranch fossils from the Miocene Makino Formation in southwest Japan, including the first fossil occurrences of the genera Springeria and Narke, is published by Nishimatsu (2019).
* A study on Paleocene cartilaginous fish fossils from the Lower Clayton Limestone Unit of the Midway Group near Malvern, Arkansas, evaluating the implications of these fossils for the knowledge of cartilaginous fish diversity across the Cretaceous-Paleogene boundary in the Malvern region and Gulf Coastal Plain of southwestern Arkansas, is published online by Maisch, Becker & Griffiths (2019).
* A study on the morphology of scales and squamation pattern in Guiyu oneiros is published by Cui, Qiao & Zhu (2019).
* A study on the anatomy and phylogenetic relationships of Brazilichthys macrognathus is published by Figueroa, Friedman & Gallo (2019).
* Permian species Palaeothrissum inaequilobum Blainville (1818) and P. parvum Blainville (1818) are found to be senior synonyms of the widely used species name Aeduella blainvillei (Agassiz, 1833) by Brignon (2019). Conditions exist for reversal of precedence and Aeduella blainvillei is declared nomen protectum.
* A study on the anatomy of the jaws, palate and teeth of Eurynotus crenatus is published by Friedman et al. (2019).
* New specimen of Birgeria liui, representing the most complete and articulated postcranial skeleton of an adult specimen of Birgeria reported so far, is described from the Ladinian of South China by Ni et al. (2019).
* Fossil remains of a spiral valve are reported in a specimen of Peipiaosteus pani from the Lower Cretaceous Yixian Formation (China) by Capasso (2019).
* Teeth of members of the genus Pycnodus are described from the Upper Cretaceous Cap de Naze marine formation (Senegal) by Capasso (2019).
* Description of a partial skeleton of Micropycnodon kansasensis from the Smoky Hill Chalk Member of the Niobrara Chalk (Kansas, United States), providing new information on the anatomy of this species, is published by Cronin & Shimada (2019).
* A study on the paleobiology of specimens of Nursallia gutturosum from the Cenomanian-Turonian platy limestone deposit of Vallecillo (north-eastern Mexico) is published by Stinnesbeck, Rust & Herder (2019).
* A study on the anatomy and phylogenetic relationships of Robustichthys luopingensis is published by Xu (2019).
* Fossil teeth representing the first evidence of Late Jurassic ginglymodians from Mt. Nerone in the Umbria-Marche-Sabina Domain (Italy) are described by Romano et al. (2019).
* A study on the anatomy and phylogenetic relationships of "Lepidotes" bernissartensis is published online by Cavin, Deesri & Olive (2019), who transfer this species to the genus Scheenstia.
* A study on the internal anatomy of a left jaw of a member of the genus Scheenstia from the Kimmeridgian Reuchenette Formation (Switzerland) is published online by Leuzinger et al. (2019), who describe a peculiar tooth replacement mode in this specimen.
* A study on the stomach contents of two specimens of Lepidotes from the Lower Jurassic of Germany is published online by Thies, Stevens & Stumpf (2019).
* Six new occurrences of Belonostomus, documenting the biogeographic and biostratigraphic range of this genus in North America, are reported from the Upper Cretaceous of Texas, Alabama and Mississippi by Van Vranken, Fielitz & Ebersole (2019).
* A study on the diversity of pectoral fin shape amongst members of Pachycormiformes is published by Liston et al. (2019).
* A study on the anatomy of the skull of Martillichthys renwickae is published online by Dobson et al. (2019).
* Fossil remains of a member or a relative of the genus Asthenocormus are described from the Upper Jurassic of the Ameghino (= Nordenskjöld) Formation of the Antarctic Peninsula by Gouiric-Cavalli et al. (2019), representing the first record of a suspension-feeding pachycormid from the Upper Jurassic of the Antarctic Peninsula and the oldest pachycormid yet recovered from Antarctica.
* New, three-dimensionally preserved specimens of Pachycormus are described from the Toarcian of Strawberry Bank at Ilminster (Somerset, United Kingdom) by Cawley et al. (2019).
* A study on the anatomy of Pleuropholis decastroi from the Lower Cretaceous (Albian) limestones of Pietraroja (Province of Benevento, Italy) and on the phylogenetic relationships of the family Pleuropholidae is published by Taverne & Capasso (2019).
* A study on the anatomy and phylogenetic relationships of the teleost species Majokia brasseuri from the Middle Jurassic Stanleyville Formation (Democratic Republic of the Congo) is published by Taverne (2019), who names a new order Majokiiformes.
* A study on the anatomy, jaw mechanics and phylogenetic relationships of Dugaldia emmilta is published by Cavin & Berrell (2019).
* A juvenile specimen of Xiphactinus audax, representing the smallest specimen of this species reported so far, will be described from the Cretaceous Niobrara Chalk (Kansas, United States) by King & Super (2019).
* A study on the internal structure of a fossil specimen of Notelops brama, investigated by neutron tomography, is published by Pugliesi et al. (2019).
* A study on the anatomy and phylogenetic relationships of Cavenderichthys talbragarensis and Waldmanichthys koonwarri is published online by Bean & Arratia (2019).
* A study on fossils of members of the genus Capoeta from the Pliocene locality Çevirme (Turkey) and on the evolutionary history of this genus is published by Ayvazyan, Vasilyan & Böhme (2019).
* Evidence of presence of managed aquaculture of the common carp by around 6000 BC is reported from the Early Neolithic Jiahu site (China) by Nakajima et al. (2019).
* A study on the morphology of fossil catfish spines from the Upper Cretaceous Adamantina and Marilia formations (Brazil) is published by Alves, Bergqvist & Brito (2019).
* A study on positions, heading directions and possible behavioural rules used in a group of fossil specimens of Erismatopterus levatus from the Eocene Green River Formation is published by Mizumoto, Miyata & Pratt (2019).
* Description of gadiform fossils from the Eocene sediments of the Sverdlovsk and Tyumen regions (Ural and Western Siberia, Russia), including fossils of members of the family Merlucciidae, is published by Marramà et al. (2019).
* Description of an incomplete percomorph specimen from the Miocene Ixtapa Formation (Mexico), representing the oldest primary freshwater percomorph fish from Mexico reported so far, is published by Cantalice & Alvarado-Ortega (2019).
* A study on the evolutionary history of the fish clade Pelagiaria is published by Friedman et al. (2019).
* A revision of the nomenclature of extant and fossil barracudas is published by Ballen (2019).
* A review of the published fossil record of the family Labridae is published by Bellwood et al. (2019).
* A study on the feeding habits of the percomorph fish Rhenanoperca minuta and other fishes from the Eocene Messel pit (Germany) is published by Micklich, Baranov & Wappler (2019).
* A study on the phylogenetic relationships of "psarolepid" bony fishes, evaluating which characters cause their different placements in analyses utilizing different methods for reconstructing the tree of life, is published by King (2019).
* A study on the ontogeny of the neurocranium and brain in the West Indian Ocean coelacanth, and on its implications for the knowledge of the evolution of the head of lobe-finned fishes, is published by Dutel et al. (2019).
* Redescription of Axelrodichthys araripensis and a comparative study of several other members of Mawsoniidae is published by Fragoso, Brito & Yabumoto (2019), who transfer the species Mawsonia lavocati to the genus Axelrodichthys.
* A study on the phylogenetic relationships and evolutionary history of mawsoniid coelacanths is published by Cavin et al. (2019).
* A study on the skull anatomy of Arquatichthys porosus, focusing on a newly-discovered postparietal shield, is published by Lu & Zhu (2019).
* Description of the posterior part of the skull of Tungsenia paradoxa is published by Lu et al. (2019).
* New fossil material of "Holoptychius" radiatus Newberry (1889) from the Devonian (Famennian) Catskill Formation (Pennsylvania, United States), providing new information on the anatomy of this species, is described by Daeschler, Downs & Matzko (2019), who transfer this species to the tristichopterid genus Langlieria.
* A study on the bone histology of the humerus of Hyneria lindae is published by Kamska et al. (2019).
* Description of new fossil material of Edenopteron from the Devonian (Famennian) Worange Point Formation (Australia) and a study on the phylogenetic relationships of this taxon is published online by Young et al. (2019).
* A study on the anatomy of the shoulder girdle and opercular series of Gogonasus andrewsae is published by Hu, Young & Lu (2019).
* A historical review of the fossil record of Devonian tetrapods and basal tetrapodomorphs from East Gondwana (Australasia, Antarctica) is published by Long, Clement & Choo (2019), who also present preliminary findings on the anatomy of the canowindrid Koharalepis jarviki based on synchrotron scan data.
* A study on the anatomy of fossil coelacanth lungs, on accessory air-breathing structures in fossil fishes and stem-tetrapods, and on the evolution of air breathing is published by Cupello, Clément & Brito (2019).
* A study on patterns of tooth replacement in Onychodus jandemarrai, Eusthenopteron foordi, Tiktaalik roseae and in extant West Indian Ocean coelacanth is published by Doeland et al. (2019).
* A study on changes of the skeletal anatomy of the pelvic and pectoral appendages during the transition from fins to limbs in vertebrate evolution, as indicated by data from fossil lobe-finned fishes and early tetrapods, is published by Esteve-Altava et al. (2019).
* A study on the anatomy of dermal rays in pectoral fins of Sauripterus taylori, Eusthenopteron foordi and Tiktaalik roseae, evaluating its implications for the knowledge of the evolution of dermal rays in early members of Tetrapodomorpha prior to the origin of digits, is published online by Stewart et al. (2019).
* A study on the evolution of the branchiostegal ray series in the skull of bony fishes, as indicated by data from extant and fossil taxa, is published by Ascarrunz et al. (2019).
* A study on the origin and evolution of acellular bone (bone without osteocytes) in fossil and extant actinopterygian fishes is published by Davesne et al. (2019).
* A diverse fish assemblage is reported from the Carboniferous (upper Pennsylvanian) Horquilla Formation (New Mexico, United States) by Ivanov & Lucas (2019).
* A study on the diversity and ecology of Triassic fish assemblages from the Villány Hills (Hungary) is published by Szabó, Botfalvai & Osi (2019).
* Cretaceous (probably Barremian–Aptian) fish fossils with strong affinities with Early Cretaceous faunas of Thailand are described from Pahang (Malaysia) by Teng et al. (2019).
* Description of a freshwater fish assemblage from the Cretaceous (Albian-Cenomanian) Açu Formation (Brazil) is published by Veiga, Bergqvist & Brito (2019).
* Description of Eocene (Bartonian) fish fauna from the Luna de Sus locality (Romania) is published by Trif, Codrea & Arghiuș (2019).
* A study on the composition of the otolith assemblage from the Santa Barbara Basin near the coast of California over the preceding two millennia is published by Jones & Checkley (2019).
* A study on the evolution of the herbivorous coral reef fishes, as indicated by data from extant and fossil species, is published by Siqueira, Bellwood & Cowman (2019).