West Easter Lily: Chadronian, Montana
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Mammalia
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Herpetotherium valens
(Lambe 1908)
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Mammalia
- Perissodactyla
- Brontotheriidae
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Brontotheriidae indet.
(Marsh 1873)
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Mammalia
- Perissodactyla
- Equidae
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Miohippus obliquidens
(Osborn 1904)
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Mammalia
- Perissodactyla
- Hyracodontidae
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Hyracodon sp.
Leidy 1856
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Mammalia
- Perissodactyla
- Rhinocerotidae
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Trigonias cf. osborni
Lucas 1900
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= Trigonias osborni
Lucas 1900
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Prothero 2005 | |||||||||
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Mammalia
- Leptomerycidae
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"Leptomeryx" sp.
Leidy 1853
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| "I" | ||||||||||
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Mammalia
- Merycoidodontidae
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Merycoidodon cf. culbertsoni
(Leidy 1848)
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| original and current combination Merycoidodon culbertsonii | ||||||||||
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Mammalia
- Carnivora
- Canidae
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? Hesperocyon sp.
Scott 1890
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Mammalia
- Apternodontidae
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Apternodus mediaevus
Matthew 1903
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Mammalia
- Lagomorpha
- Leporidae
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Megalagus brachyodon
(Matthew 1903)
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Palaeolagus temnodon
Douglass 1902
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Palaeolagus haydeni
Leidy 1856
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| this and the preceding may represent P. hemirhizis if that species is valid | ||||||||||
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Mammalia
- Rodentia
- Ischyromyidae
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Ischyromys sp.
Leidy 1856
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Ischyromys veterior
Matthew 1903
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Mammalia
- Rodentia
- Eomyidae
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Paradjidaumo trilophus
(Cope 1873)
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| recombined as Adjidaumo trilophus | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Montana | County: | Jefferson |
| Coordinates: | 46.0° North, 112.0° West (view map) | ||||
| Paleocoordinates: | 47.8° North, 103.1° West | ||||
| Basis of coordinate: | based on political unit | ||||
| Geographic resolution: | small collection |
Time
| Period: | Paleogene | Epoch: | Eocene |
| Stage: | Priabonian | 10 m.y. bin: | Cenozoic 3 |
| *Period: | Tertiary | ||
| Key time interval: | Chadronian | ||
| Age range of interval: | 37.00000 - 33.90000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Formation: | Renova | Member: | Dunbar Creek |
| Local section: | JeffB | Local bed: | 1 |
| 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 |
| Taxonomic list comments:entire section is of reversed polarity general area, stratigraphic origin unknown, possibly Orellan: Cryptoryctes kayi - described by Reed and Turnbull 1965 Cylindrodon fontis Hyaenodon horridus Hyaenodon crucians Hyaenodon microdon Agriochoerus sp. "Leptotragulus" profectus known only from MV 8105: Centetodon kuenzii Mesohippus bairdi known only from MV 8111: "Leptomeryx" sp. "M" all other specimens are present at MV 7913 except where noted | |
Metadata
| Also known as: | MV 7913, MV 17915, MV 8105, MV 8111 | ||
| Database number: | 17041 | ||
| Authorizer: | J. Alroy, J. Marcot | Enterer: | J. Alroy, J. Marcot |
| Modifier: | J. Alroy | Research group: | vertebrate |
| Created: | 1997-04-12 00:00:00 | Last modified: | 2006-09-13 00:27:33 |
| Access level: | the public | Released: | 1997-04-12 00:00:00 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 3359. | A. R. Tabrum, D. R. Prothero, and D. Garcia. 1996. Magnetostratigraphy and biostratigraphy of the Eocene-Oligocene transition, southwestern Montana. In D. R. Prothero and R. J. Emry (eds.), The Terrestrial Eocene-Oligocene Transition in North America 278-311 [J. Alroy/J. Alroy/J. Alroy] |
Secondary references:
| 51726 | D. R. Prothero. 2005. The Evolution of North American Rhinoceroses. 1-218 [J. Marcot/J. Marcot] |