Blacktail Deer Creek: Harrisonian, Montana
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Reptilia
- Testudines
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Chelonia indet.
(Latreille 1800)
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Douglass 1902 | |||||||||
| synonym of Testudines | ||||||||||
| Turtle remains not studied | ||||||||||
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Mammalia
- Perissodactyla
- Rhinocerotidae
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Caenopus sp.
Cope 1880
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Douglass 1902 | |||||||||
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= Rhinocerotidae indet.
Gray 1821
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Alroy 2002 | |||||||||
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Mammalia
- Anthracotheriidae
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Arretotherium acridens n. sp.
Douglass 1902
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Douglass 1902 | |||||||||
| (3 measurements) | ||||||||||
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Mammalia
- Merycoidodontidae
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Promerycochoerus barbouri
Schultz and Falkenbach 1949
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= Merycochoerus chelydra
Cope 1884
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Alroy 2002 | |||||||||
| recombined as Promerycochoerus chelydra | ||||||||||
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Mammalia
- Erinaceidae
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Ocajila macdonaldi
Korth 2022
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Korth 2022 | |||||||||
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Mammalia
- Rodentia
- Entoptychidae
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Gregorymys montanensis
Hibbard and Keenmon 1951
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| (3 measurements) | ||||||||||
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= Entoptychus montanensis
Hibbard and Keenmon 1951
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Alroy 2002 | |||||||||
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Mammalia
- Rodentia
- Castoridae
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Steneofiber hesperus n. sp.
Douglass 1902
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Douglass 1902 | |||||||||
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= Monosaulax hesperus
Douglass 1902
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Hibbard and Keenmon 1950 | |||||||||
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= Neatocastor hesperus
Douglass 1902
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Alroy 2002 | |||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Montana | County: | Beaverhead |
| Coordinates: | 45.0° North, 112.8° West (view map) | ||||
| Paleocoordinates: | 46.1° North, 107.8° West | ||||
| Basis of coordinate: | based on political unit |
Time
| 10 m.y. bin: | Cenozoic 4-5 | ||
| *Period: | Tertiary | *Epoch: | Miocene |
| Key time interval: | Harrisonian | ||
| Age range of interval: | 23.10000 - 18.50000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Formation: | Blacktail Deer Creek |
Lithology and environment
| Primary lithology: | sandy claystone |
| Secondary lithology: | sandstone |
| Includes fossils? | Y |
| Lithology description: Fine sandy clay with thin strata of sandstone | |
| Environment: | terrestrial indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
| Disassociated major elements: | some |
| Disassociated minor elements: | some |
| Fragmentation: | extreme |
Collection methods and comments
| Collection excludes: | some genera |
| Collection methods: | selective quarrying,field collection |
| Reason for describing collection: | taxonomic analysis |
| Taxonomic list comments:Turtle remains also mentioned | |
Metadata
| Database number: | 17761 | ||
| Authorizer: | J. Alroy, N. Famoso | Enterer: | J. Alroy, N. Famoso, J. Wertheim |
| Modifier: | J. Wertheim | Research group: | vertebrate |
| Created: | 1993-02-18 00:00:00 | Last modified: | 2002-07-29 01:37:49 |
| Access level: | the public | Released: | 1993-02-18 00:00:00 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 1902. | C. W. Hibbard and K. A. Keenmon. 1950. Contr MPUM 8(7) [J. Alroy/J. Alroy] |
Secondary references:
| 6294 | J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari] | |
| 1381 | 5% 51860 | E. Douglass. 1902. Fossil Mammalia of the White River beds of Montana. Transactions of the American Philosophical Society 20:237-279 [J. Alroy/J. Alroy/W. Clyde] |
| 82958 | W. W. Korth. 2022. The Hedgehog Ocajila Macdonald, 1963 (Mammalia, Lipotyphla, Erinaceidae) from the Oligocene (Orellan to Arikareean) of North America. Annals of Carnegie Museum 87(3):207-220 [N. Famoso/N. Famoso] |