Chadron in Place: Chadronian, Nebraska
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Mammalia
- Carnivora
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Pseudaelurus sp.
Leidy 1858
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= Carnivora indet.
Bowdich 1821
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Alroy 2002 | |||||||||
| not at all clear what this really is | ||||||||||
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Mammalia
- Carnivora
- Nimravidae
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Hoplophoneus mentalis
Sinclair 1921
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Dinictis sp.
(Leidy 1854)
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Mammalia
- Carnivora
- Canidae
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Pseudocynodictis paterculus
(Matthew 1903)
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= Hesperocyon gregarius
Cope 1873
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Alroy 2002 | |||||||||
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Mammalia
- Camelidae
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Poebrotherium sp.
Leidy 1847
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Mammalia
- Merycoidodontidae
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Merycoidodon culbertsoni
(Leidy 1848)
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Mammalia
- Dichobunidae
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Choeropotamidae indet.
Owen 1845
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= Dichobunidae indet.
Gill 1872
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Alroy 2002 | |||||||||
| comparisons made to Achaenodon, Parahyus, and Brachyhyops | ||||||||||
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Mammalia
- Tayassuidae
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Perchoerus ? probus
(Leidy 1856)
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Mammalia
- Leptomerycidae
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Leptomeryx evansi
Leidy 1853
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Leptomeryx esulcatus
Cope 1889
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Mammalia
- Anthracotheriidae
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Bothriodon sp.
Aymard 1846
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= Anthracotheriidae indet.
Leidy 1869
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Alroy 2002 | |||||||||
| - could be Aepinacodon | ||||||||||
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Mammalia
- Perissodactyla
- Hyracodontidae
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Hyracodon nebraskensis
(Leidy 1850)
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= Hyracodon sp.
Leidy 1856
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Alroy 2002 | |||||||||
| this could easily be H. priscidens | ||||||||||
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Mammalia
- Perissodactyla
- Equidae
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Mesohippus cf. hypostylus
Osborn 1904
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= Mesohippus cf. bairdi
Leidy 1850
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Alroy 2002 | |||||||||
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Mammalia
- Perissodactyla
- Brontotheriidae
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Brontops brachycephalus
(Osborn 1902)
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Mammalia
- Rodentia
- Cylindrodontidae
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Cylindrodon fontis
Douglass 1902
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= Cylindrodon sp.
Douglass 1902
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Wood 1980 | |||||||||
| "C. nebraskensis" | ||||||||||
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Mammalia
- Rodentia
- Ischyromyidae
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Titanotheriomys cf. wyomingensis
Wood 1937
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= Ischyromys cf. veterior
Matthew 1903
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Alroy 2002 | |||||||||
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Ischyromys pliacus
Troxell 1922
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= Ischyromys typus
Leidy 1856
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Alroy 2002 | |||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Nebraska | County: | Sioux |
| Coordinates: | 42.4° North, 103.8° West (view map) | ||||
| Paleocoordinates: | 43.8° North, 95.1° West | ||||
| Basis of coordinate: | based on political unit |
Time
| Period: | Paleogene | Epoch: | Eocene |
| Stage: | Priabonian | 10 m.y. bin: | Cenozoic 3 |
| *Period: | Tertiary | ||
| Key time interval: | Chadronian | ||
| Age range of interval: | 37 - 33.9 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Local section: | PineR | Local bed: | 1 |
| Local order: | bottom to top |
Lithology and environment
| Environment: | terrestrial indet. |
Taphonomy
| Modes of preservation: | body |
Collection methods and comments
| Taxonomic list comments:below the lower purple-white layer |
Metadata
| Database number: | 16929 | ||
| Authorizer: | J. Alroy | Enterer: | J. Alroy | Research group: | vertebrate |
| Created: | 1993-02-18 00:00:00 | Last modified: | 2002-06-03 03:27:41 |
| Access level: | the public | Released: | 1993-02-18 00:00:00 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 1944. | J. R. Hough and R. Alf. 1956. A Chadron mammalian fauna from Nebraska. Journal of Paleontology 30(1):132-140 [J. Alroy/J. Alroy/M. Carrano] |
Secondary references:
| 6294 | J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari] | |
| 3737 | A. E. Wood. 1980. The Oligocene Rodents of North America. Transactions of the American Philosophical Society 70(5):1-68 [J. Alroy/J. Alroy/J. Ju] |