Twin Creeks: Tiffanian, Wyoming
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Mammalia
- Macroscelidea
- Apheliscidae
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? Litomylus ishami n. sp.
Gazin 1956
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1 specimen | |||||||||
| USNM 21263 | ||||||||||
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Haplaletes cf. pelicatus
Gazin 1956
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Mammalia
- Primates
- Microsyopidae
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Navajovius kohlhaasae
Matthew and Granger 1921
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Gunnell 1989 | |||||||||
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Mammalia
- Primates
- Plesiadapidae
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Plesiadapis cf. fodinatus
Jepsen 1930
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= Plesiadapis rex
Gidley 1923
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Gingerich 1976 | |||||||||
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Mammalia
- Carnivora
- Miacidae
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Didymictis sp.
Cope 1875
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= Miacidae indet.
Cope 1880
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Alroy 2002 | |||||||||
| could be Protictis, Bryanictis, Simpsonictis, etc. | ||||||||||
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Mammalia
- Procreodi
- Arctocyonidae
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? Arctocyon cf. ferox
(Cope 1883)
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| assigned to "Claenodon" by Gazin | ||||||||||
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Thryptacodon cf. australis
Simpson 1935
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Mammalia
- Phenacodontidae
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Gidleyina cf. wyomingensis
Gazin 1956
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= Ectocion cf. collinus
Russell 1929
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Alroy 2002 | |||||||||
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Phenacodus sp.
Cope 1873
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Mammalia
- Pantodonta
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Pantodonta indet.
Cope 1873
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Mammalia
- Multituberculata
- Ptilodontidae
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cf. Ptilodus sp.
Cope 1881
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| apparently P. sp. "C" because this is listed by Gunnell 1994 | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Wyoming | County: | Lincoln |
| Coordinates: | 41.8° North, 110.7° West (view map) | ||||
| Paleocoordinates: | 48.0° North, 91.4° West | ||||
| Basis of coordinate: | based on political unit |
Time
| Period: | Paleogene | Epoch: | Paleocene |
| 10 m.y. bin: | Cenozoic 1 | ||
| *Period: | Tertiary | ||
| Key time interval: | Tiffanian | ||
| Age range of interval: | 60.90000 - 56.20000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Formation: | Evanston |
Lithology and environment
| Environment: | terrestrial indet. |
Taphonomy
| Modes of preservation: | body |
Collection methods and comments
| Collection size: | 84 specimens |
Metadata
| Also known as: | Twin Creek Forks | ||
| Database number: | 14999 | ||
| Authorizer: | J. Alroy | Enterer: | J. Alroy | Research group: | vertebrate |
| Created: | 1993-02-18 00:00:00 | Last modified: | 2002-06-03 03:27:40 |
| Access level: | the public | Released: | 1993-02-18 00:00:00 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 2993. | D. E. Russell. 1967. Le Paleocene continental d'Amerique du nord. Memoires du Museum National d'Histoire Naturelle. Serie C., Sciences de la Terre 16(2):37-99 [J. Alroy/J. Alroy] |
Secondary references:
| 6294 | J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari] | |
| 1635 | P. D. Gingerich. 1976. Cranial Anatomy and Evolution of Early Tertiary Plesiadapidae (Mammalia, Primates). University of Michigan Papers on Paleontology 15:1-141 [J. Alroy/J. Alroy/P. Mannion] | |
| 1730 | G. F. Gunnell. 1989. Evolutionary History of Microsyopoidea (Mammalia, ?Primates) and the Relationship Between Plesiadapiformes and Primates. University of Michigan Papers on Paleontology 27:1-157 [J. Alroy/J. Alroy/P. Mannion] |