Warfield Springs: Wasatchian, Wyoming
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Reptilia
- Polychrotidae
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Afairiguana avius n. gen., n. sp.
Conrad et al. 2007
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Reptilia
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Saniwa ensidens
Leidy 1870
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Rieppel and Grande 2007 | 1 specimen | ||||||||
| FMNH PR2380, cast of a complete skeleton (original in a private collection, Black Hills Institute) | ||||||||||
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Reptilia
- Suliformes
- Fregatidae
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Limnofregata hasegawai
Olson and Matsuoka 2005
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Olson and Matsuoka 2005 | |||||||||
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Limnofregata azygosternon
Olson 1977
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Olson and Matsuoka 2005 | |||||||||
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Reptilia
- Lithornithidae
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Calciavis grandei n. gen., n. sp.
Nesbitt and Clarke 2016
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Nesbitt and Clarke 2016 | 2 specimens | ||||||||
| AMNH 30578, AMNH 30560 | ||||||||||
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Actinopteri
- Clupeiformes
- Clupeoidei
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Knightia sp.
Jordan 1907
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Actinopteri
- Ellimmichthyiformes
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Diplomystus sp.
Cope 1877
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| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Wyoming | County: | Lincoln |
| Coordinates: | 41.7° North, 110.7° West (view map) | ||||
| Paleocoordinates: | 46.8° North, 94.4° West | ||||
| Basis of coordinate: | stated in text | ||||
| Geographic resolution: | small collection |
Time
| Period: | Paleogene | Epoch: | Eocene |
| Stage: | Ypresian | 10 m.y. bin: | Cenozoic 2 |
| Key time interval: | Wasatchian | ||
| Age range of interval: | 54.90000 - 50.50000 m.y. ago |
Stratigraphy
| Formation: | Green River | Member: | Fossil Butte | ||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: "Eocene" and from the "F-2 deposits": age assignment is based on other Fossil Butte collections | |||||
Lithology and environment
| Primary lithology: | lithified "limestone" |
| Lithology description: lizard is on a "limestone slab" | |
| Environment: | lacustrine deltaic indet. |
| Geology comments: "Fossil Lake was thought to have been a subtropical freshwater lake... [the] locality is located in the southeastern near-shore part of what was Fossil Lake" and is "thought to have been part of a large delta system" | |
Taphonomy
| Modes of preservation: | body,adpression |
| Size of fossils: | macrofossils |
| Articulated whole bodies: | many |
Collection methods and comments
| Collection excludes: | some genera,species names |
| Collection methods: | survey of museum collection |
| Reason for describing collection: | taxonomic analysis |
| Museum repositories: | FMNH |
| Taxonomic list comments:list of fishes is incomplete and omits species names | |
Metadata
| Also known as: | Locality K | ||
| Database number: | 85026 | ||
| Authorizer: | J. Alroy, G. Lloyd, M. Uhen | Enterer: | J. Alroy, M. Uhen, G. Lloyd |
| Modifier: | J. Alroy | Research group: | vertebrate |
| Created: | 2008-11-22 13:32:58 | Last modified: | 2008-11-25 11:21:40 |
| Access level: | the public | Released: | 2008-11-22 13:32:58 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 28554. | J. L. Conrad, O. Rieppel, and L. Grande. 2007. A Green River (Eocene) polychrotid (Squamata, Reptilia) and a re-examination of iguanian systematics. Journal of Paleontology 81(6):1365-1373 [J. Alroy/J. Alroy] |
Secondary references:
| 67483 | S. J. Nesbitt and J. A. Clarke. 2016. The anatomy and taxonomy of the exquisitely preserved Green River Formation (Early Eocene) lithornithids (Aves) and the relationships of Lithornithidae. Bulletin of the American Museum of Natural History 406:1-91 [G. Lloyd/G. Lloyd] | |
| 74378 | S. L. Olson and H. Matsuoka. 2005. New specimens of the early Eocene frigatebird Limnofregata (Pelecaniformes: Fregatidae), with the description of a new species. Zootaxa 1046:1-15 [M. Uhen/M. Uhen] | |
| 28570 | O. Rieppel and L. Grande. 2007. The anatomy of the fossil varanid lizard Saniwa ensidens Leidy, 1870, based on a newly discovered complete skeleton. Journal of Paleontology 81(4):643-665 [J. Alroy/J. Alroy] |