# List of the Mesozoic life of Oregon

This list of the Mesozoic life of Oregon contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of Oregon and are between 252.17 and 66 million years of age.

## A

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* H
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* K
* L
* M
* N
* O
* P
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* †Acanthocircus
** †Acanthocircus carinatus – or unidentified related form
** †Acanthocircus rotundus – or unidentified related form
* †Acanthodiscus
** †Acanthodiscus subradiatus – or unidentified related form
* Fossilized shells of the Early-Late Cretaceous marine bivalve Actinoceramus †Actinoceramus
** †Actinoceramus salomoni
** †Actinoceramus subsulcatus
** †Actinoceramus sulcatus
* †Agerchlamys
** †Agerchlamys boellingi
* †Alpinophragmium – tentative report
* †Amblysiphonella
** †Amblysiphonella steinmanni – or unidentified comparable form
** †Amblysiphonella timorica
* †Ampakabastraea
** †Ampakabastraea cowichanensis
* †Anahamulina
** †Anahamulina wilcoxensis
* †Anatropites
* †Andrazella
* †Angulobracchia
** †Angulobracchia bulbosa
* †Anoptychia
** †Anoptychia oregonensis – type locality for species
* †Antexitus – type locality for genus
** †Antexitus inusitatus – type locality for species
** †Antexitus pessagnoi – type locality for species
** †Antexitus southforkensis – type locality for species
** †Antexitus yangi – type locality for species
* †Anthostylis
** †Anthostylis acanthophora – or unidentified comparable form
* †Antiquilima
* †Apiotrigonia
** †Apiotrigonia condoni
* †Arcavicula – tentative report
* Life restoration of two species of the Late Triassic ammonoid cephalopod Arcestes †Arcestes
** †Arcestes gigantogaleatus – or unidentified comparable form
* †Archaeocenosphaera
** †Archaeocenosphaera laseekensis
* †Archaeodictyomitra
** †Archaeodictyomitra exigua
** †Archaeodictyomitra primigena
* †Archaeohagiastrum
** †Archaeohagiastrum munitum – or unidentified related form
** †Archaeohagiastrum oregonense – type locality for species
* †Archaeospongoprunum
** †Archaeospongoprunum helense
** †Archaeospongoprunum praeimlayi
* †Arietoceltites
* Shell of a modern Astarte bivalve Astarte
* †Astraeomorpha
** †Astraeomorpha confusa
** †Astraeomorpha crassisepta
* †Austrisaturnalis
** †Austrisaturnalis quadriradiatus – or unidentified related form

## B

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* †Baccanella
* †Badouxia
** †Badouxia canadensis – type locality for species
** †Badouxia columbiae
* †Barbuta
** †Barbuta senecaensis – type locality for species
* †Bennettazhia
** †Bennettazhia oregonensis – type locality for species
* †Bistarkum
** †Bistarkum bifurcum – type locality for species
** †Bistarkum rigidium – type locality for species
** †Bistarkum saginatum – type locality for species
* †Broctus
** †Broctus ruesti – type locality for species
* †Buchia
** †Buchia pacifica
** †Buchia piochii
** †Buchia uncitoides – or unidentified comparable form
* †Bulbocyrtium
** †Bulbocyrtium tubum – type locality for species

## C

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* Cadulus
* Fossilized shell of the Late Cretaceous ammonoid cephalopod Calycoceras †Calycoceras
** †Calycoceras naviculare – type locality for species
* †Camptonectes
* †Canelonus
** †Canelonus conus – or unidentified comparable form
* †Canoptum
** †Canoptum anulatum
** †Canoptum artum – type locality for species
** †Canoptum macoyense – or unidentified comparable form
** †Canoptum merum
** †Canoptum poissoni
** †Canoptum praeanulatum
** †Canoptum spinosum – type locality for species
* †Cantalum
* †Canutus
** †Canutus fusus – type locality for species
** †Canutus giganteus
** †Canutus indomitus
** †Canutus nitidus – type locality for species
** †Canutus rockfishensis
* †Capnodoce
** †Capnodoce anapetes – or unidentified related form
** †Capnodoce angusta – type locality for species
** †Capnodoce antiqua – type locality for species
** †Capnodoce baldiensis – type locality for species
** †Capnodoce beaulieui – type locality for species
** †Capnodoce copiosa – type locality for species
** †Capnodoce extenta – type locality for species
** †Capnodoce fragilis – type locality for species
** †Capnodoce gracilis – type locality for species
** †Capnodoce insueta – type locality for species
** †Capnodoce kochi – type locality for species
** †Capnodoce malaca – type locality for species
** †Capnodoce media – type locality for species
** †Capnodoce minuscula – type locality for species
** †Capnodoce minuta – type locality for species
** †Capnodoce sinuosa – type locality for species
** †Capnodoce traversi
* †Capnuchosphaera
** †Capnuchosphaera colemani – type locality for species
** †Capnuchosphaera deweveri
** †Capnuchosphaera schenki – type locality for species
** †Capnuchosphaera silviesensis – type locality for species
** †Capnuchosphaera smithorum – type locality for species
** †Capnuchosphaera sockensis – type locality for species
** †Capnuchosphaera soldierensis – type locality for species
** †Capnuchosphaera texensis – type locality for species
* Cardinia
* †Cardinioides
** †Cardinioides josephus
* †Cassianella
** †Cassianella angusta
* †Catoma – type locality for genus
** †Catoma concinna – type locality for species
** †Catoma geometrica – type locality for species
** †Catoma inedita – type locality for species
* Life restoration of the Late Triassic-Middle Jurassic nautiloid cephalopod Cenoceras †Cenoceras
** †Cenoceras lupheri – type locality for species
* †Ceriostella
* †Charlottea
** †Charlottea carterae – type locality for species
** †Charlottea weedensis – or unidentified comparable form
* Chlamys
** †Chlamys mojsisovicsi
* †Chondrocoenia
** †Chondrocoenia paradoxa
* †Cleoniceras – tentative report
** †Cleoniceras dilleri – type locality for species
* †Coccophyllum – tentative report
* †Coelastarte
* †Coenastraea
** †Coenastraea hyatti
* †Colospongia
** †Colospongia utriculus
* †Corum
** †Corum candidum – type locality for species
** †Corum parvum – type locality for species
* †Crassistella
** †Crassistella juvavica
** †Crassistella vesiculosa – or unidentified comparable form
* †Crenamussium
** †Crenamussium concentricum
* Fossilized shell of the Early Cretaceous ammonoid cephalopod Crioceratites †Crioceratites
* †Crubus
** †Crubus chengi – type locality for species
** †Crubus firmus – type locality for species
* †Crucella
** †Crucella angulosa – or unidentified comparable form
** †Crucella beata – type locality for species
** †Crucella concinna – type locality for species
** †Crucella jadeae – type locality for species
** †Crucella theokaftensis – or unidentified comparable form
* †Cryptocoelia
* †Cuifastraea
** †Cuifastraea granulata
* †Cyathocoenia
** †Cyathocoenia gerthi – or unidentified comparable form

## D

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* Dentalium
** †Dentalium stentor
* †Diceratigalea
** †Diceratigalea mirus
** †Diceratigalea venustus
* †Dichotomites
* †Diplotremina
* †Discamphiceras
** †Discamphiceras ornatum – type locality for species
* †Discosiphonella
* †Discotropites
* †Distichophyllia
** †Distichophyllia norica
* †Droltus
** †Droltus probosus
** †Droltus sanignacioensis
* †Drulanta
** †Drulanta bella – type locality for species
** †Drulanta pulchra – type locality for species

## E

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* †Elodium – tentative report
** †Elodium mackenziei
* †Elysastraea
** †Elysastraea profunda
* †Emiluvia
** †Emiluvia bacata – type locality for species
** †Emiluvia brevispina – type locality for species
** †Emiluvia goricanae – type locality for species
** †Emiluvia kozuri – type locality for species
** †Emiluvia oregonensis – type locality for species
** †Emiluvia parvinodosa – type locality for species
** †Emiluvia pessagnoi
* †Empirea
* †Endostoma
* †Entolium
** †Entolium ceruleus – type locality for species
* †Eocomoseris
** †Eocomoseris ramosa
* †Erugonia
** †Erugonia canyonensis

## F

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* †Fantus
** †Fantus exiguus – type locality for species
** †Fantus schoolhousensis – type locality for species
* †Farcus
** †Farcus graylockensis
** †Farcus kozuri – type locality for species
** †Farcus lepidus – type locality for species
** †Farcus lipidus – or unidentified comparable form
** †Farcus multidorsus – type locality for species
* †Fenestrula
** †Fenestrula jurassica – type locality for species
** †Fenestrula oregonensis – type locality for species
* †Franziceras
** †Franziceras graylockense – type locality for species
* †Frenguelliella – tentative report

## G

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* †Gablonzeria
** †Gablonzeria profunda
* Fossilized shell of the Carboniferous-Eocene bivalve Gervillia †Gervillia
** †Gervillia angusta
* †Gorgansium
** †Gorgansium beaverense – type locality for species
** †Gorgansium browni – type locality for species
** †Gorgansium morganense
** †Gorgansium silviesense
** †Gorgansium thayeri – type locality for species
** †Gorgansium vallieri
** †Gorgansium yangi – type locality for species
* †Grammatodon
* Interior and exterior of a fossilized shell of the Late Triassic-Eocene marine bivalve Gryphaea †Gryphaea
** †Gryphaea arcuataeformis

## H

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* †Hagiastrum
** †Hagiastrum macrum – type locality for species
** †Hagiastrum majusculum
* †Hajarispongia
** †Hajarispongia whaleni – type locality for species
* †Halobia
** †Halobia beyrichi
** †Halobia dilatata
** †Halobia halorica
** †Halobia oregonensis – type locality for species
** †Halobia radiata
** †Halobia salinarum
** †Halobia superba
* †Halorella
* †Hannaites
** †Hannaites riddlensis
** †Hannaites truncatus
* †Hannaoceras
* †Hemicryptocapsa
* †Heptastylis
** †Heptastylis aquilae
** †Heptastylis oregonensis
* †Hetalum – type locality for genus
** †Hetalum brevilabrum – type locality for species
* †Higumastra
** †Higumastra angustabraccia – type locality for species
** †Higumastra exigua – type locality for species
** †Higumastra hui – type locality for species
** †Higumastra inflata – or unidentified comparable form
** †Higumastra laxa – type locality for species
** †Higumastra lupheri – type locality for species
** †Higumastra obesabraccia – type locality for species
** †Higumastra transversa
* †Hilarisirex
** †Hilarisirex oregonensis
* †Hiscocapsa
** †Hiscocapsa funatoensis
** †Hiscocapsa matsuokai – type locality for species
** †Hiscocapsa minuta – type locality for species
* †Hollisites
** †Hollisites dichotomus – type locality for species
* †Homoeoparonaella
** †Homoeoparonaella elegans
** †Homoeoparonaella hydensis – type locality for species
* †Homolsomites
** †Homolsomites stantoni
* †Hoplocrioceras
** †Hoplocrioceras remondi – or unidentified comparable form
* Fossil of the Jurassic-Paleogene lobster Hoploparia †Hoploparia
** †Hoploparia riddlensis – type locality for species
* †Hsuum
** †Hsuum acutum – type locality for species
** †Hsuum belliatulum
** †Hsuum brevicostatum
** †Hsuum gratum – type locality for species
** †Hsuum lucidum – type locality for species
** †Hsuum lupheri
** †Hsuum mirabundum
** †Hsuum modicum – type locality for species
** †Hsuum parasolense
** †Hsuum parvulum – type locality for species
** †Hsuum robustum
** †Hsuum rosebudense
* †Hyphantoceras
** †Hyphantoceras ceratopse – tentative report
** †Hyphantoceras irregulare – tentative report
* †Hypophylloceras
** †Hypophylloceras onoense – or unidentified related form
** †Hypophylloceras onoensis – or unidentified related form

## I

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* †Icrioma
** †Icrioma praecipua – type locality for species
** †Icrioma transversa – type locality for species
* Fossilized shell of the Early Jurassic-Late Cretaceous marine bivalve Inoceramus with a human indicating its size †Inoceramus
* †Isocyprina

## J

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* †Jaworskiella
** †Jaworskiella supleiensis – type locality for species
* †Justium – type locality for genus
** †Justium medium – type locality for species
** †Justium novum – type locality for species
** †Justium robustum – type locality for species

## K

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* †Kahlerosphaera
* †Katroma
** †Katroma angusta – type locality for species
** †Katroma bicornus – type locality for species
** †Katroma clara – type locality for species
** †Katroma inflata – type locality for species
** †Katroma ninstintsi
** †Katroma pinquitudo – or unidentified comparable form
* †Kilianella
** †Kilianella besairiei – or unidentified comparable form
* †Krumbeckiella – tentative report
** †Krumbeckiella timorensis – tentative report
* †Kuhnastraea
** †Kuhnastraea decussata
** †Kuhnastraea incrassata

## L

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* †Lantus
** †Lantus obesus – type locality for species
** †Lantus sixi – type locality for species
* †Lanubus
** †Lanubus alatus – type locality for species
** †Lanubus dickinsoni
** †Lanubus hattorii – type locality for species
** †Lanubus holdsworthi
** †Lanubus purus
* †Laxuscingula – type locality for genus
** †Laxuscingula obesa
* †Leugeo
** †Leugeo hullae – type locality for species
** †Leugeo ordinarius
** †Leugeo parvispinata
* Lima
** †Lima spinigera
* †Liostrea
** †Liostrea newelli
* Electron micrograph of fossilized teeth from the Early Jurassic-Early Cretaceous freshwater shark Lissodus †Lissodus
** †Lissodus weltoni – type locality for species
* †Lithiotis
** †Lithiotis problematica
* †Loffa
** †Loffa lepida – type locality for species
** †Loffa vesterensis – type locality for species
* Lopha
* †Lucina
* †Lupherium
** †Lupherium nitidum
** †Lupherium snowshoense
* Fossilized shell of the Early Cretaceous ammonoid cephalopod Lyelliceras †Lyelliceras
* †Lytoceras
** †Lytoceras aulaeum

## M

* A
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* †Maeandrostylis
** †Maeandrostylis grandiseptus – type locality for species
** †Maeandrostylis vancouverensis
* Fossilized shell of the Late Cretaceous ammonoid cephalopod Mantelliceras †Mantelliceras
** †Mantelliceras phoenixense – type locality for species
* †Margarastraea
** †Margarastraea pulchra – type locality for species
* †Margarosmilia – report made of unidentified related form or using admittedly obsolete nomenclature
** †Margarosmilia confluens
* †Meleagrinella
* †Metapolygnathus
** †Metapolygnathus nodosus
* Milax
** †Milax alienus
** †Milax flexuosus
* Miliolipora
* †Minetrigonia
* †Minutusolla – type locality for genus
** †Minutusolla yaoi – type locality for species
†Modiolus
* †Monotis
** †Monotis subcircularis
* †Montlivaltia – report made of unidentified related form or using admittedly obsolete nomenclature
* †Multimonilis – type locality for genus
** †Multimonilis pulcher – type locality for species
** †Multimonilis splendidus – or unidentified comparable form
* †Myophorella
** †Myophorella argo – or unidentified comparable form
** †Myophorella freboldi – type locality for species
* †Myophorigonia
** †Myophorigonia kobayashii
* †Mysidiella
** †Mysidiella americana – or unidentified comparable form
** †Mysidiella cordillerana
* †Mysidioptera
** †Mysidioptera spinigera
** †Mysidioptera williamsi

## N

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* Napora
** †Napora antelopensis
** †Napora aperta – type locality for species
** †Napora baumgartneri
** †Napora bearensis
** †Napora cerromesaensis
** †Napora cosmica – or unidentified related form
** †Napora insolita
** †Napora milleri
** †Napora morganensis
** †Napora opaca
** †Napora proba – type locality for species
** †Napora propria – type locality for species
** †Napora relica – type locality for species
* †Neoconocaryomma – type locality for genus
** †Neoconocaryomma acusspina – type locality for species
** †Neoconocaryomma mixtura – type locality for species
** †Neoconocaryomma tantulimamma – type locality for species
** †Neoconocaryomma tripalmaspina – type locality for species
* †Neogondolella
* †Neowrangellium
** †Neowrangellium pessagnoi – type locality for species
* Fossilized shell of the Jurassic-Cretaceous sea snail Nerinea †Nerinea
* †Nevadaphyllites
** †Nevadaphyllites compressus
* Nodosaria – or unidentified comparable form
* †Noritus
** †Noritus lillihornensis – or unidentified comparable form
** †Noritus pauxillus
** †Noritus tenuis – type locality for species
* Nucinella – or unidentified comparable form

## O

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* †Occidentocerithium – type locality for genus
** †Occidentocerithium panthalassicum – type locality for species
* Fossilized shell of the Early Cretaceous ammonoid cephalopod Olcostephanus †Olcostephanus
** †Olcostephanus pecki
** †Olcostephanus popenoei
* †Ophthalmidium
* †Oppelismilia
* †Orbiculiforma
** †Orbiculiforma densaora – type locality for species
** †Orbiculiforma hexagonaora – type locality for species
** †Orbiculiforma iniqua
** †Orbiculiforma librataspira – type locality for species
** †Orbiculiforma multifora – or unidentified related form
** †Orbiculiforma sentarota – type locality for species
* †Orbiculiformella
** †Orbiculiformella callosa
** †Orbiculiformella trispina – type locality for species
* †Oregoniceras
** †Oregoniceras jacksonense – type locality for species
** †Oregoniceras jillsoni – type locality for species
** †Oregoniceras multicostum
** †Oregoniceras phoenixense – type locality for species
* Shell of an Ostrea, or oyster Ostrea
* †Otoscaphites
** †Otoscaphites perrini
* †Oxytropidoceras

## P

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* †Pachus – tentative report
* Fossilized shell of the Late Cretaceous ammonoid cephalopod Pachydiscus †Pachydiscus
** †Pachydiscus ashlandicus – type locality for species
** †Pachydiscus oregonensis – type locality for species
* †Pachyoncus
** †Pachyoncus crassus – type locality for species
** †Pachyoncus floreus – type locality for species
** †Pachyoncus tumidus
** †Pachyoncus varius
* †Palaeodasycladus – tentative report
* †Palaeosaturnalis
** †Palaeosaturnalis subovalis
* †Palaxius
* †Palinandromeda
** †Palinandromeda fimbria
* †Pamiroseris
** †Pamiroseris meriani
** †Pamiroseris smithi
* †Pantanellium
** †Pantanellium baileyi – type locality for species
** †Pantanellium butonense – type locality for species
** †Pantanellium cumshewaense
** †Pantanellium fosteri
** †Pantanellium foveatum
** †Pantanellium inornatum
** †Pantanellium latum – type locality for species
** †Pantanellium malheurense – type locality for species
** †Pantanellium pinguisfloreus – type locality for species
** †Pantanellium sincerum – type locality for species
** †Pantanellium ultrasincerum
** †Pantanellium vigrassi – type locality for species
** †Pantanellium wui – type locality for species
* †Paradelphinulopsis – type locality for genus
** †Paradelphinulopsis vallieri – type locality for species
* †Paradeningeria – tentative report
* †Paradiscamphiceras
** †Paradiscamphiceras athabascanense
** †Paradiscamphiceras dickinsoni
** †Paradiscamphiceras elkhornense – type locality for species
* †Parahsuum
** †Parahsuum formosum – type locality for species
** †Parahsuum hiconocosta
** †Parahsuum izeense
** †Parahsuum mostleri – type locality for species
** †Parahsuum officerense
** †Parahsuum publicum
** †Parahsuum sporta – type locality for species
** †Parahsuum vizcainoense
* †Parallelodon
** †Parallelodon monobensis – or unidentified comparable form
* †Parasaturnalis
** †Parasaturnalis diplocyclis – type locality for species
** †Parasaturnalis yehae – type locality for species
* †Parasepsagon
** †Parasepsagon variabilis
* †Parentactinia
** †Parentactinia nakatsugawaensis
* †Parentactinosphaera – tentative report
** †Parentactinosphaera longispinosa
* †Paronaella
** †Paronaella araneae
** †Paronaella bona – type locality for species
** †Paronaella curticrassa
** †Paronaella fera – type locality for species
** †Paronaella grahamensis
** †Paronaella kotura
** †Paronaella obesa
** †Paronaella pessagnoi
** †Paronaella pygmaea
** †Paronaella skowkonaensis
** †Paronaella snowshoensis – type locality for species
** †Paronaella venadoensis – or unidentified related form
* †Parvicingula
** †Parvicingula blackhornensis
** †Parvicingula blackhorsensis
** †Parvicingula elegans
** †Parvicingula matura
** †Parvicingula media
** †Parvicingula praeacutum
* †Parvifavus
** †Parvifavus irregularis
* †Parvivacca
** †Parvivacca blomei – or unidentified comparable form
* †Perispyridium
** †Perispyridium apertum – type locality for species
** †Perispyridium darwini
** †Perispyridium dettermani – or unidentified comparable form
** †Perispyridium dumitricai
** †Perispyridium facetum
** †Perispyridium gujohachimanense
** †Perispyridium oregonense – type locality for species
** †Perispyridium schopfi
** †Perispyridium tamarackense
** †Perispyridium whalenae – type locality for species
* Fossil of the Devonian-Cretaceous sponge Peronidella †Peronidella
* †Phacelostylophyllum
** †Phacelostylophyllum zitteli
* Pholadomya
* †Phylloceras
** †Phylloceras umpquanum
* †Phyllopachyceras
** †Phyllopachyceras trinitense
** †Phyllopachyceras umpquanum
* †Plafkerium
** †Plafkerium robustum – type locality for species
* †Plagiostoma – tentative report
* †Planiinvoluta
* †Platymya
** †Platymya rockymontana
* †Pleesus
** †Pleesus aptus – type locality for species
* †Pleuromya
* †Pleuronectites
* Plicatula
** †Plicatula hekiensis
* †Poulpus
** †Poulpus haeckeli – type locality for species
** †Poulpus karnicus – type locality for species
** †Poulpus lupheri – type locality for species
* †Praeconocaryomma
** †Praeconocaryomma decora – type locality for species
** †Praeconocaryomma parvimamma
** †Praeconocaryomma splendida – type locality for species
** †Praeconocaryomma whiteavesi
** †Praeconocaryomma yakounensis
* †Praeparvicingula
** †Praeparvicingula burnsensis
** †Praeparvicingula communis
** †Praeparvicingula decora
** †Praeparvicingula grantensis
** †Praeparvicingula inornata
** †Praeparvicingula prisca
** †Praeparvicingula profunda
** †Praeparvicingula schoolhousensis
** †Praeparvicingula sodaensis
** †Praeparvicingula tlellensis
** †Praeparvicingula vera
* †Procyclolites
* †Promathildia
* †Pronoella
** †Pronoella uintahensis
* †Protorcula
** †Protorcula frydai
* †Protunuma
** †Protunuma japonicus
* †Pseudocrucella
** †Pseudocrucella hilara – type locality for species
** †Pseudocrucella ornata – type locality for species
** †Pseudocrucella pecta – type locality for species
** †Pseudocrucella prava
** †Pseudocrucella tangae – type locality for species
* †Pseudoheliodiscus
* †Pseudolimea
** †Pseudolimea naumanni
* †Pseudopantanellium
** †Pseudopantanellium floridum – type locality for species
* †Pseudopoulpus
** †Pseudopoulpus acutipodium – type locality for species
** †Pseudopoulpus deweveri – type locality for species
* †Pseudoristola
** †Pseudoristola faceta – type locality for species
** †Pseudoristola megaglobosa – type locality for species
* †Pseudosaturniforma
** †Pseudosaturniforma minuta
* †Pseudospondylospira
** †Pseudospondylospira perplexa
* †Pseudostylosphaera
** †Pseudostylosphaera japonica
** †Pseudostylosphaera magnispinosa – type locality for species
* †Purpuroidea – report made of unidentified related form or using admittedly obsolete nomenclature
* †Pylostephanidium

## Q

* A
* B
* C
* D
* E
* F
* G
* H
* I
* J
* K
* L
* M
* N
* O
* P
* Q
* R
* S
* T
* U
* V
* W
* X
* Y
* Z
* †Quadrisaturnalis – type locality for genus
** †Quadrisaturnalis dickinsoni – type locality for species
** †Quadrisaturnalis grandis – type locality for species
** †Quadrisaturnalis quadratus – type locality for species
* †Quarticella
** †Quarticella ovalis – or unidentified comparable form

## R

* A
* B
* C
* D
* E
* F
* G
* H
* I
* J
* K
* L
* M
* N
* O
* P
* Q
* R
* S
* T
* U
* V
* W
* X
* Y
* Z
* †Radium – type locality for genus
** †Radium pessagnoi – type locality for species
* †Recticostastraea – type locality for genus
** †Recticostastraea wallowaensis – type locality for species
* †Renzium – type locality for genus
** †Renzium adversum – type locality for species
** †Renzium webergorum – type locality for species
* †Retiophyllia
** †Retiophyllia dawsoni
** †Retiophyllia norica
** †Retiophyllia oppeli – or unidentified related form
** †Retiophyllia parviseptum
* †Ristola
** †Ristola prisca
** †Ristola reliqua – type locality for species
** †Ristola turpicula
* †Rolumbus
** †Rolumbus beatus – type locality for species
** †Rolumbus hilarus – type locality for species
** †Rolumbus lautus – type locality for species

## S

* A
* B
* C
* D
* E
* F
* G
* H
* I
* J
* K
* L
* M
* N
* O
* P
* Q
* R
* S
* T
* U
* V
* W
* X
* Y
* Z
* †Saitoum
** †Saitoum coronarium – or unidentified comparable form
** †Saitoum dickinsoni – type locality for species
** †Saitoum smithi – type locality for species
** †Saitoum thayeri – type locality for species
* †Salzburgia – tentative report
* †Sarasinella
** †Sarasinella densicostata – or unidentified comparable form
** †Sarasinella hyatti
** †Sarasinella subspinosa – or unidentified comparable form
* †Sarla
** †Sarla delicata – type locality for species
** †Sarla externa – type locality for species
** †Sarla formosa – type locality for species
** †Sarla plena – type locality for species
** †Sarla triangulata – type locality for species
** †Sarla vetusta – or unidentified related form
* †Scalarites
** †Scalarites mihoensis
* †Scaphites
** †Scaphites condoni
* †Schistophylloceras
** †Schistophylloceras aulonotum – or unidentified related form
* †Sepsagon
** †Sepsagon longispinosus
* †Septocardia
* Life restoration of three species of the Middle-Late Triassic ichthyosaur genus Shastasaurus †Shastasaurus
** †Shastasaurus pacificus – or unidentified comparable form
* †Silicarmiger
* †Simbirskites
** †Simbirskites elatus – or unidentified related form
** †Simbirskites progrediens – or unidentified related form
* †Sontonaella
** †Sontonaella concinna – type locality for species
** †Sontonaella spongiosa – type locality for species
* †Spinidelphinulopsis – type locality for genus
** †Spinidelphinulopsis whaleni – type locality for species
* †Spitidiscus
** †Spitidiscus oregonensis – type locality for species
* †Spondylospira
** †Spondylospira lewesensis
** †Spondylospira tricosta
* †Spongiomorpha
** †Spongiomorpha acyclica
** †Spongiomorpha gibbosa – or unidentified comparable form
** †Spongiomorpha tenuis
* †Spongocapsula
** †Spongocapsula palmerae
* †Spongostylus
** †Spongostylus carnicus
* †Stauracontium – tentative report
** †Stauracontium trispinosum
* †Stromatomorpha
* †Stuoresia
** †Stuoresia libratosepta – or unidentified comparable form
* †Stylophyllopsis
** †Stylophyllopsis lindstroemi – or unidentified comparable form
** †Stylophyllopsis rudis – or unidentified comparable form
* †Stylophyllum
* †Subprionocyclus
** †Subprionocyclus branneri
** †Subprionocyclus neptuni
** †Subprionocyclus normalis – type locality for species
* †Sympolycyclus
* †Syringocapsa
** †Syringocapsa turgida

## T

* A
* B
* C
* D
* E
* F
* G
* H
* I
* J
* K
* L
* M
* N
* O
* P
* Q
* R
* S
* T
* U
* V
* W
* X
* Y
* Z
* †Tardentactinia
** †Tardentactinia oregonensis – type locality for species
* †Teichertus
** †Teichertus pessagnoi – type locality for species
** †Teichertus splendidus
* †Telacapsula – type locality for genus
** †Telacapsula johndayensis – type locality for species
** †Telacapsula littlescottyensis – type locality for species
** †Telacapsula odoghertyi – type locality for species
** †Telacapsula wangi – type locality for species
* †Tetraditryma
** †Tetraditryma coldspringensis
** †Tetraditryma corralitosensis
** †Tetraditryma pseudoplena
* †Tetragonites
** †Tetragonites glabrus
** †Tetragonites jacksonense – type locality for species
* †Tetrarchiplagia
** †Tetrarchiplagia yehae
* †Tetratrabs
** †Tetratrabs acutusspina – type locality for species
** †Tetratrabs izeensis – type locality for species
** †Tetratrabs robustusspina – type locality for species
* Fossil of the Triassic-Eocene stony coral Thamnasteria †Thamnasteria
** †Thamnasteria borealis
* †Thamnasteriamorpha
** †Thamnasteriamorpha frechi
* †Thecomeandra
** †Thecomeandra vallieri
* †Thecosmilia – report made of unidentified related form or using admittedly obsolete nomenclature
* †Thurmanniceras
** †Thurmanniceras jenkinsi
** †Thurmanniceras stippi – or unidentified comparable form
** †Thurmanniceras wilcoxi
* †Thurstonia
** †Thurstonia gibsoni – or unidentified comparable form
* †Tolypammina
* †Tosapecten
** †Tosapecten subhiemalis
* †Tozerium
* †Tragodesmoceras
** †Tragodesmoceras ashlandicum
* †Triactoma
** †Triactoma rosespitensis
* †Triassocampe
** †Triassocampe exilis – type locality for species
** †Triassocampe illyrica
** †Triassocampe immaturum
** †Triassocampe pulchra – or unidentified comparable form
** †Triassocampe sulovensis
* †Triassocingula
* †Triassocyrtium – tentative report
* Fossilized shell of the Permian-Paleocene marine bivalve Trigonia †Trigonia
** †Trigonia montanaensis
* †Trillus
** †Trillus elkhornensis
** †Trillus seidersi – type locality for species
* †Tripocyclia
** †Tripocyclia brooksi
** †Tripocyclia smithi
** †Tripocyclia southforkensis
** †Tripocyclia wickiupensis
* †Tritrabs
** †Tritrabs simplex
** †Tritrabs suavis
** †Tritrabs worzeli – or unidentified comparable form
* †Triversus
** †Triversus fastigatus
* Trochocyathus
** †Trochocyathus oregonensis – type locality for species
* †Tropites
* †Turanta
** †Turanta fida – type locality for species
** †Turanta morinae
** †Turanta nodosa
* †Turristylus
** †Turristylus triadicus – or unidentified related form
* Fossilized shells of the Late Jurassic-modern tower snail Turritella Turritella
** †Turritella buwaldana
* †Tutcheria
** †Tutcheria densestriata
** †Tutcheria densestriatum

## U

* A
* B
* C
* D
* E
* F
* G
* H
* I
* J
* K
* L
* M
* N
* O
* P
* Q
* R
* S
* T
* U
* V
* W
* X
* Y
* Z
* †Undularia
* †Unuma – tentative report
** †Unuma unicus – type locality for species
* †Uvanella
** †Uvanella norica

## V

* A
* B
* C
* D
* E
* F
* G
* H
* I
* J
* K
* L
* M
* N
* O
* P
* Q
* R
* S
* T
* U
* V
* W
* X
* Y
* Z
* †Vaugonia
** †Vaugonia oregonensis – type locality for species
** †Vaugonia yukonensis – tentative report
* Venericardia
* †Vermiceras
** †Vermiceras mineralense
** †Vermiceras morganense – type locality for species
** †Vermiceras rursicostatum – or unidentified related form
* †Verticiplagia
** †Verticiplagia oregonensis – type locality for species
** †Verticiplagia verticillata
** †Verticiplagia yehae

## W

* A
* B
* C
* D
* E
* F
* G
* H
* I
* J
* K
* L
* M
* N
* O
* P
* Q
* R
* S
* T
* U
* V
* W
* X
* Y
* Z
* †Wallowaconcha
** †Wallowaconcha raylenea
* †Wallowanerita – type locality for genus
** †Wallowanerita newtonae – type locality for species
* †Wellsia
** †Wellsia oregonensis
** †Wellsia packardi
** †Wellsia vigorosa
* †Weyla
* †Williriedellum
** †Williriedellum frequens
* †Wilvemia
* †Wrangellium
** †Wrangellium izeense – type locality for species
** †Wrangellium oregonense – type locality for species
** †Wrangellium thurstonense – or unidentified comparable form

## X

* A
* B
* C
* D
* E
* F
* G
* H
* I
* J
* K
* L
* M
* N
* O
* P
* Q
* R
* S
* T
* U
* V
* W
* X
* Y
* Z
* †Xiphostylus
** †Xiphostylus communis – type locality for species
** †Xiphostylus fragilis
** †Xiphostylus halli
** †Xiphostylus logdellensis
** †Xiphostylus simplus – type locality for species
** †Xiphostylus sinuosus
** †Xiphostylus superbus
** †Xiphostylus vallieri
** †Xiphostylus whalenae
* †Xiphotheca
* †Xiphothecaella
** †Xiphothecaella longa

## Y

* A
* B
* C
* D
* E
* F
* G
* H
* I
* J
* K
* L
* M
* N
* O
* P
* Q
* R
* S
* T
* U
* V
* W
* X
* Y
* Z
* †Yamatoum
* †Yeharaia
** †Yeharaia elegans

## Z

* A
* B
* C
* D
* E
* F
* G
* H
* I
* J
* K
* L
* M
* N
* O
* P
* Q
* R
* S
* T
* U
* V
* W
* X
* Y
* Z
* †Zardinia – tentative report
* †Zartus
** †Zartus dickinsoni – type locality for species
** †Zartus imlayi – type locality for species
** †Zartus jonesi – type locality for species
** †Zartus jurassicus – type locality for species
** †Zartus praejonesi – type locality for species
** †Zartus thayeri – type locality for species
* †Zoneait – type locality for genus
** †Zoneait nargorum – type locality for species
* †Zugmayerella
** †Zugmayerella americana – type locality for species
** †Zugmayerella uncinata