Horse Thief Canyon No. 1/2: Clarendonian, Nebraska
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Mammalia
- Perissodactyla
- Equidae
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Pliohippus pernix
Marsh 1874
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Mihlbachler et al. 2011 | |||||||||
| Supplemental Table S1: "Canyon 1" | ||||||||||
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Calippus martini
Hesse 1936
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Hulbert 1989 | |||||||||
| pers. commun. | ||||||||||
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Mammalia
- Antilocapridae
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Cosoryx furcatus
Leidy 1869
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Frick 1937 | |||||||||
| "No. 1 lower zone" | ||||||||||
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Mammalia
- Moschidae
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Longirostromeryx merriami
Frick 1937
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Frick 1937 | |||||||||
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= Longirostromeryx wellsi
Matthew 1904
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Alroy 2002 | |||||||||
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Mammalia
- Merycoidodontidae
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Ustatochoerus profectus
(Matthew and Cook 1909)
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Schultz and Falkenbach 1941 | |||||||||
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= Merychyus novomexicanus
Frick 1929
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Alroy 2002 | |||||||||
| invalid subgroup of Ustatochoerus medius | ||||||||||
| from No. 1, and their "U. skinneri" from No. 2 | ||||||||||
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Mammalia
- Carnivora
- Amphicyonidae
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Pseudocyon sp.
Lartet 1851
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| "Horsethief Canyon no. 2" | ||||||||||
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Mammalia
- Proboscidea
- Gomphotheriidae
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Eubelodon morrilli
(Barbour 1914)
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Skinner and Johnson 1984 | |||||||||
| Mastodon morrilli | ||||||||||
| No. 2 | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Nebraska | County: | Brown |
| Coordinates: | 42.7° North, 100.0° West (view map) | ||||
| Paleocoordinates: | 43.1° North, 97.4° West | ||||
| Basis of coordinate: | based on political unit |
Time
| Period: | Neogene | Epoch: | Miocene |
| 10 m.y. bin: | Cenozoic 5-6 | ||
| *Period: | Tertiary | ||
| Key time interval: | Clarendonian | ||
| Age range of interval: | 12.50000 - 9.40000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Formation: | Ash Hollow | Member: | Cap Rock |
| Local section: | ValAH | Local bed: | 5 |
| Local order: | bottom to top |
Lithology and environment
| Environment: | terrestrial indet. |
Taphonomy
| Modes of preservation: | body |
Collection methods and comments
| Collection excludes: | some genera |
| Taxonomic list comments:number of specimens not clear; localities lumped because early collections did not distinguish them: Skinner and Johnson 1984 | |
Metadata
| Database number: | 18204 | ||
| Authorizer: | J. Alroy, J. Marcot | Enterer: | J. Alroy, J. Marcot |
| Modifier: | J. Alroy | Research group: | vertebrate |
| Created: | 1992-08-05 00:00:00 | Last modified: | 2006-09-13 01:07:26 |
| Access level: | the public | Released: | 1993-02-18 00:00:00 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 1977. | R. M. Hunt, Jr. 1998. Amphicyonidae. 196-227 [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] | |
| 1952 | R. C. Hulbert, Jr. 1989. Phylogenetic Interrelationships and Evolution of North American Late Equidae. In D. R. Prothero and R. M. Schoch (eds.), The Evolution of Perissodactyls [J. Alroy/J. Alroy/M. Uhen] | |
| 61275 | M. C. Mihlbachler, F. Rivals, N. Solounias and G. M. Semprebon. 2011. Dietary Change and Evolution of Horses in North America. Science 331:1178-1181 [J. Marcot/J. Marcot] | |
| 3063 | C. B. Schultz and C. H. Falkenbach. 1941. Ticholeptinae, a new subfamily of oreodonts. Bulletin of the American Museum of Natural History 79(1):1-105 [J. Alroy/J. Alroy/J. Marcot] | |
| 6193 | M. F. Skinner and F. W. Johnson. 1984. Tertiary stratigraphy and the Frick Collection of fossil vertebrates from north-central Nebraska. Bulletin of the American Museum of Natural History 178(3):1-368 [J. Alroy/J. Alroy/J. Alroy] |