# 1925 in paleontology

Paleontology or palaeontology is the study of prehistoric life forms on Earth through the examination of plant and animal fossils. This includes the study of body fossils, tracks (ichnites), burrows, cast-off parts, fossilised feces (coprolites), palynomorphs and chemical residues. Because humans have encountered fossils for millennia, paleontology has a long history both before and after becoming formalized as a science. This article records significant discoveries and events related to paleontology that occurred or were published in the year 1925.

## Plants
### Liverworts

| Name | Novelty | Status | Authors | Age | Unit | Location | Synonymized taxa | Notes | Images |
| Lejeunea eophila | Sp nov. | jr synonym | Cockerell | Eocene Ypresian | Green River Formation | United States Colorado | | A leafy liverwort morphospecies. Moved to Jungermannites eophila (1947). | Jungermannites eophila |

### Angiosperms

| Name | Novelty | Status | Authors | Age | Unit | Location | Notes | Images |
| Alsinites | Gen et sp. nov | valid | Cockerell | Eocene Wasatchian | Green River Formation | United States Colorado | A carnation family flower morphospecies. | Alsinites revelatus |
| Amorpha utensis | Sp. nov | valid | Cockerell | Eocene Wasatchian | Green River Formation | United States Colorado | A legume leaf morphospecies. | Amorpha utensis |
| Banksites lineatulus | Sp. nov | jr synonym | Cockerell | Eocene Wasatchian | Green River Formation | United States Colorado | First named as a proteaceous seed morphotype Synonymized into Cedrelospermum nervosum in 1989) | Cedrelospermum nervosum |
| Bumelia coloradensis | Sp. nov | jr synonym | Cockerell | Eocene Wasatchian | Green River Formation | United States Colorado | First named as a sapotaceous leaf morphospecies Synonymized into Leguminosites lesquereuxiana by 1952 | Leguminosites lesquereuxiana |
| Clethra? lepidioides | Sp. nov | jr synonym | Cockerell | Eocene Wasatchian | Green River Formation | United States Colorado | A tetramelaceous fruit morphotype Moved to Parvaspicula lepidioidea in 2023 | Parvaspicula lepidioidea |
| Dalbergia knowltoni | Sp. nov | jr synonym | Cockerell | Eocene Wasatchian | Green River Formation | United States Colorado | First named as a legume leaf morphospecies. Synonymized into Leguminosites lesquereuxiana by 1952 | Leguminosites lesquereuxiana |
| Liquidambar callarche | Sp. nov | valid | Cockerell | Eocene Wasatchian | Green River Formation | United States Colorado | A sweet-gum species. | Liquidambar callarche |
| Lomatia obtusiuscula | Sp. nov | jr synonym | Cockerell | Eocene Wasatchian | Green River Formation | United States Colorado | First named as a Lomatia leaf morphotype Synonymized into "Cardiospermum" coloradensis in 1969) | "Cardiospermum" coloradensis |
| Melia coloradensis | Comb. nov | jr synonym | (Knowlton) Cockerell | Eocene Wasatchian | Green River Formation | United States Colorado | Identified as a Melia leaf morphotype Moved from Phyllites coloradensis (1923) Moved to Lomatia coloradensis in 1929 Moved to "Cardiospermum" coloradensis in 1969) | "Cardiospermum" coloradensis |
| Populus wilmattae | Sp. nov | valid | Cockerell | Eocene Wasatchian | Green River Formation | United States Colorado | An Aspen/cottonwood relative. | Populus wilmattae |
| Potentilla? byrami | Sp. nov | jr synonym | Cockerell | Eocene Wasatchian | Green River Formation | United States Colorado | First named as a possible potentilla flower morphospecies Synonymized into Pseudosalix handleyi by 2003 | Pseudosalix handleyi |

## Arthropods
### Insects

| Name | Novelty | Status | Authors | Age | Unit | Location | Notes | Images |
| Cardiophorus exhumatus | Sp. nov | valid | Cockerell | Eocene Wasatchian | Green River Formation | United States Colorado | An elaterid click beetle species. | Cardiophorus exhumatus |
| Cyttaromyia obdurescens | Sp. nov | valid | Cockerell | Eocene Wasatchian | Green River Formation | United States Colorado | A long-bodied cranefly. | |
| Eoliarus | Gen, sp. et comb nov | valid | Cockerell | Eocene Wasatchian | Green River Formation | United States Colorado | A Fulgoroid plant hopper genus. The type species is E. quadristictus The genus also includes Oliarus? lutensis (1890). | Eoliarus quadristictus |
| Inocellia exusta | Sp nov | jr synonym | Cockerell & Custer | Eocene Priabonian | Florissant Formation | USA Colorado | An inocelliid snakefly moved to Fibla exusta in 1936 | Fibla exusta |
| Mesoraphidia | Fam, Gen, et 4 sp nov | valid | Martynov | Late Jurassic | Karabastau Formation | Kazakhstan | A snakefly The type genus of the new family Mesoraphidiidae Includes the new species M. elongata, M. grandis, M. inaequalis, and M. similis | |
| Thamnotettix packardi | Sp. nov | valid | Cockerell | Eocene Wasatchian | Green River Formation | United States Colorado | A cicadellid leafhopper. | Thamnotettix packardi |

## Archosauromorpha
### General pseudosuchian research

* Longman describes a crocodilian skull discovered at Lansdown Station in Australia, assigning it to the genus Pallimnarchus (now Paludirex).

### Dinosaurs

| Taxon | Novelty | Status | Author(s) | Age | Unit | Location | Notes | Images |
| Arrhinoceratops brachyops | Gen et sp nov | Valid | Parks | Cretaceous Maastrichtian | Horseshoe Canyon Formation | Canada Alberta | A ceratopsid | |
| Trachodon amurense | Sp. nov. | Nomen dubium | Riabinin | Cretaceous Maastrichtian | Yuliangze Formation | China | A species of Trachodon later given the genus name Mandschurosaurus | |

### Newly named plesiosaurs

| Name | Status | Authors | Age | Location | Notes | Images |
| Tapinosaurus | nomen invalidum | Rabeck | | | Mislabeling of an image, not a valid genus name | |

## Synapsids
### Non-mammalian

| Name | Status | Authors | Age | Location | Notes | Images |
| Lycaenodon | Valid | Broom | 257 Millions of years ago | South Africa | | |
| Lycaenoides | Valid | Broom | | | | |
| Lycaenops | Valid | Broom | | South Africa  Zambia | A Dog-like Gorgonopsian. | Lycaenops |
| Notosollasia | Jr. synonym | | | | Jr. synonym of Theriognathus. | |

### Mammals

| Name | Novelty | Status | Authors | Age | Unit | Location | Notes |
| Ardynictis | Gen et sp nov | Valid | Matthew & Granger | Late Eocene | Ergilin Dzo Formation | Mongolia | A didymoconid, type species is A. furunculus. |
| Ardynomys | Gen et sp nov | Valid | Matthew & Granger | Late Eocene | Ergilin Dzo Formation | Mongolia | A rodent, type species is A. olseni. |
| Hyaenodon eminus | Sp nov | Valid | Matthew & Granger | Late Eocene | Ergilin Dzo Formation | Mongolia | A hyaenodont |