Cedar Creek: Orellan, Colorado
collected by E. D. Cope 1873
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Reptilia
- Xenosauridae
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Exostinus serratus n. gen., n. sp.
Cope 1873
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1 specimen | |||||||||
| AMNH 1608 (holotype), skull fragments | ||||||||||
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Reptilia
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Peltosaurus granulosus n. sp.
Cope 1873
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2 specimens | |||||||||
| AMNH 1610 (holotype), premaxilla, partial maxilla, left jugal, coosified frontals, other skull fragments, three vertebrae, many dermal scutes, ribs; KU 1278, portions of right dentary (coll. Martin 1911) | ||||||||||
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Reptilia
- Iguanidae
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Aciprion formosum n. gen., n. sp.
Cope 1873
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1 specimen | |||||||||
| AMNH 1609 (holotype), dentary | ||||||||||
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Reptilia
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Cremastosaurus carinicollis n. gen., n. sp.
Cope 1873
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1 specimen | |||||||||
| nomen dubium belonging to Lacertilia | ||||||||||
| AMNH 1604, intercentrum of atlas, axis, and four succeeding cervicals articulated | ||||||||||
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Reptilia
- Boidae
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Calamagras talpivorus n. sp.
(Cope 1873)
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Gilmore 1938 | 1 specimen | ||||||||
| AMNH 1598, three vertebrae | ||||||||||
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Calamagras murivorus n. gen., n. sp.
Cope 1873
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Gilmore 1938 | 4 specimens | ||||||||
| AMNH 1603, six articulated vertebrae. Co-types (2) of C. truxalis likely also from this area: AMNH 1603, 1657, plus AMNH 1658, all vertebrae "from the beds of the White River epoch in northeast Colorado" | ||||||||||
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Calamagras angulatus n. sp.
Cope 1873
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Gilmore 1938 | 1 specimen | ||||||||
| AMNH 1654, single vertebra | ||||||||||
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Neurodromicus dorsalis n. gen., n. sp.
Cope 1873
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Gilmore 1938 | 1 specimen | ||||||||
| AMNH 1599, single anterior thoracic vertebra | ||||||||||
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Mammalia
- Perissodactyla
- Hyracodontidae
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Hyracodon arcidens n. sp.
Cope 1873
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Cope and Matthew 1915 | |||||||||
| synonym of Hyracodon nebraskensis | ||||||||||
| AMNH 6309 | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Colorado | County: | Logan County |
| Coordinates: | 40.7° North, 103.2° West (view map) | ||||
| Paleocoordinates: | 41.9° North, 95.3° West | ||||
| Basis of coordinate: | based on political unit |
Time
| Period: | Paleogene | Epoch: | Oligocene |
| Stage: | Rupelian | 10 m.y. bin: | Cenozoic 4 |
| Key time interval: | Orellan | Zone: | Oreodon beds |
| Age range of interval: | 33.90000 - 31.80000 m.y. ago |
Stratigraphy
| Geological group: | White River | Formation: | Brule | ||
| Stratigraphy comments: 'Oreodon beds, White River Formation, Oligocene'
= Brule Formation (Hoganson et al. 1998) | |||||
Lithology and environment
| Primary lithology: | not reported |
| Environment: | terrestrial indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils,mesofossils |
Collection methods and comments
| Reason for describing collection: | taxonomic analysis | ||
| Collectors: | E. D. Cope | Collection dates: | 1873 |
Metadata
| Database number: | 118198 | ||
| Authorizer: | R. Benson, J. Marcot, P. Barrett | Enterer: | R. Benson, T. Cleary, J. Marcot |
| Modifier: | M. Carrano | Research group: | vertebrate |
| Created: | 2011-10-08 02:05:10 | Last modified: | 2017-10-27 12:33:03 |
| Access level: | the public | Released: | 2011-10-08 02:05:10 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 14538. | C. W. Gilmore. 1928. Fossil lizards of North America. Memoirs of the National Academy of Sciences 22(3):1-201 [J. Head/J. Head/M. Carrano] |
Secondary references:
| 62305 | E. D. Cope and W. D. Matthew. 1915. Hitherto unpublished plates of Tertiary Mammalia and Permian Vertebrata. American Museum of Natural History Monograph Series 2 [J. Marcot/J. Marcot/M. Uhen] | |
| 14699 | C. W. Gilmore. 1938. Fossil snakes of North America. Geological Society of America Special Paper (9)1-96 [J. Head/J. Head] |