Pliohippus Draw (The Pits): Hemphillian, Nebraska
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Mammalia
- Proboscidea
- Mammutidae
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Pliomastodon matthewi
(Osborn 1921)
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= Mammut matthewi
Osborn 1921
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Alroy 2002 | |||||||||
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Mammalia
- Proboscidea
- Gomphotheriidae
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Serridentinus nebrascensis
Osborn 1924
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= Gomphotherium sp.
Burmeister 1837
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Alroy 2002 | |||||||||
| and "S. anguirvalis" | ||||||||||
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Mammalia
- Carnivora
- Canidae
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Aelurodon taxoides
Hatcher 1894
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Wang et al. 1999 | |||||||||
| "East fork of Pliohippus Draw... middle Hipparion Affine Channel"; also "Ashbrook Pasture... Hipparion Affine Channel" and specimen from "Pliohippus Draw, Snake Creek Quarry" thought to be reworked from the Laucomer Member; however, only the Johnson Member is exposed in this area | ||||||||||
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Epicyon saevus
(Leidy 1858)
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Wang et al. 1999 | |||||||||
| "'The Pits' south of Pliohippus Draw"; also "Sand channel, West Draw" | ||||||||||
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Epicyon haydeni
(Leidy 1858)
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Wang et al. 1999 | |||||||||
| "'The Pits,' south of Pliohippus Draw"; "Pliohippus Draw, Snake Creek Quarry" | ||||||||||
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Mammalia
- Palaeomerycidae
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Cranioceras unicornis
Matthew 1918
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Frick 1937 | |||||||||
| "'The Pits' S. of Pliohippus Draw" | ||||||||||
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Mammalia
- Bovidae
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Neotragocerus improvisus
Matthew and Cook 1909
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| from lower Johnson Mbr. in "Pliohippus Draw" | ||||||||||
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Mammalia
- Antilocapridae
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Texoceros altidens
(Matthew 1924)
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| from lower Johnson Mbr. in "Pliohippus Draw"; said to be "S. of Pliohippus Draw" by Frick 1937 | ||||||||||
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Mammalia
- Perissodactyla
- Equidae
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Hipparion cf. eurystyle
(Cope 1893)
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= Neohipparion sp.
Gidley 1903
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Alroy 2002 | |||||||||
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Dinohippus leidyanus
(Osborn 1918)
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Mammalia
- Rodentia
- Castoridae
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Castor cf. californicus
Kellogg 1911
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| described by Stirton 1935 | ||||||||||
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Dipoides sp.
Jaeger 1835
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= Dipoides cf. wilsoni
Hibbard 1949
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Shotwell 1955 | |||||||||
| described by Stirton 1935; I believe Skinner et al. were not aware of this reidentification | ||||||||||
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Mammalia
- Megalonychidae
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Megalonyx curvidens
Matthew 1924
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| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Nebraska | County: | Sioux |
| Coordinates: | 42.4° North, 103.8° West (view map) | ||||
| Paleocoordinates: | 42.7° North, 102.1° West | ||||
| Basis of coordinate: | based on political unit |
Time
| Period: | Neogene | ||
| 10 m.y. bin: | Cenozoic 6 | ||
| *Period: | Tertiary | *Epoch: | Miocene |
| Key time interval: | Hemphillian | ||
| Age range of interval: | 9.40000 - 4.70000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Formation: | Snake Creek | Member: | Johnson |
| Local section: | Snake | Local bed: | 8 |
| Local order: | bottom to top |
Lithology and environment
| Environment: | terrestrial indet. |
Taphonomy
| Modes of preservation: | body |
Collection methods and comments
| Reason for describing collection: | biostratigraphic analysis |
Metadata
| Also known as: | Quarry 5; South of Pliohippus Draw | ||
| Database number: | 18323 | ||
| Authorizer: | J. Alroy | Enterer: | J. Alroy |
| Modifier: | J. Alroy | Research group: | vertebrate |
| Created: | 1994-04-30 00:00:00 | Last modified: | 2007-08-19 13:40:49 |
| Access level: | the public | Released: | 1994-04-30 00:00:00 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 3175. | M. F. Skinner, S. M. Skinner, and R. J. Gooris. 1977. Stratigraphy and biostratigraphy of late Cenozoic deposits in central Sioux County, western Nebraska. Bulletin of the American Museum of Natural History 158(5):263-370 [J. Alroy/J. Alroy/J. Alroy] |
Secondary references:
| 6294 | J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari] | |
| 6222 | C. Frick. 1937. Horned ruminants of North America. Bulletin of the American Museum of Natural History 69:1-669 [J. Alroy/J. Alroy/M. Uhen] | |
| 3108 | J. A. Shotwell. 1955. Review of the Pliocene Beaver Dipoides. Journal of Paleontology 29(1):129-144 [J. Alroy/J. Alroy/J. Ju] | |
| 3558 | X. Wang, R. H. Tedford, and B. E. Taylor. 1999. Phylogenetic systematics of the Borophaginae (Carnivora: Canidae). Bulletin of the American Museum of Natural History 243:1-392 [J. Alroy/J. Alroy/J. Alroy] |