Riverdale: Tiffanian, North Dakota
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Mammalia
- Pantolestidae
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Propalaeosinopa albertensis
Simpson 1927
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= Propalaeosinopa sp.
Simpson 1927
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Hartman et al. 1993 | |||||||||
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Mammalia
- Procreodi
- Arctocyonidae
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Arctocyonidae indet.
Murray 1866
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Mammalia
- Phenacodontidae
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Ectocion wyomingensis
(Gazin 1956)
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= Ectocion collinus
Russell 1929
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Alroy 2002 | |||||||||
| not mentioned by Hartman et al. 1993 | ||||||||||
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Phenacodus primaevus
(Cope 1873)
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= Phenacodus magnus
Thewissen 1990
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Thewissen 1990 | |||||||||
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Mammalia
- Primates
- Plesiadapidae
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Plesiadapis sp.
Gervais 1877
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| not mentioned by Hartman et al. 1993 | ||||||||||
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Mammalia
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Titanoides primaevus
Gidley 1917
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Mammalia
- Multituberculata
- Ptilodontidae
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Ptilodus kummae
Krause 1977
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| see common names | ||||||||||
Geography
| Country: | United States | State/province: | North Dakota | County: | McLean |
| Coordinates: | 47.5° North, 101.2° West (view map) | ||||
| Paleocoordinates: | 52.1° North, 79.1° West | ||||
| Basis of coordinate: | based on political unit |
Time
| Period: | Paleogene | Epoch: | Paleocene |
| 10 m.y. bin: | Cenozoic 1 | ||
| *Period: | Tertiary | ||
| Key time interval: | Tiffanian | ||
| Age range of interval: | 60.9 - 56.2 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Formation: | Sentinel Butte | ||
| Local section: | Tngue | Local bed: | 3 |
| Local order: | bottom to top |
Lithology and environment
| Environment: | terrestrial indet. |
Taphonomy
| Modes of preservation: | body |
Collection methods and comments
| Taxonomic list comments:original locality is L1, others are newly discovered: Hartman et al. 1993 either Tongue River Fm. or Sentinel Butte Fm. according to Holtzman, but 23.2 m above base of Sentinel Butte Fm. according to Hartman and Kihm 1991 diverse molluscs listed by Hartman et al. 1993 |
Metadata
| Also known as: | L1, L5507, L6200 | ||
| Database number: | 14977 | ||
| Authorizer: | J. Alroy | Enterer: | J. Alroy | Research group: | vertebrate |
| Created: | 1993-02-18 00:00:00 | Last modified: | 2002-06-03 03:27:40 |
| Access level: | the public | Released: | 1993-02-18 00:00:00 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 1929. | R. C. Holtzman. 1978. Late Paleocene Mammals of the Tongue River Formation, Western North Dakota. North Dakota Geological Survey Report of Investigations 65:1-88 [J. Alroy/J. Alroy/M. Uhen] |
Secondary references:
| 6294 | J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari] | |
| 1805 | J. H. Hartman, B. Roth, and A. J. Kihm. 1993. A diverse assemblage of Paleocene nonmarine mollusks and mammals from the Sentinel Butte Formation of North Dakota. Proceedings of the North Dakota Academy of Sciences 47 [J. Alroy/J. Alroy/P. Holroyd] | |
| 3401 | J. G. M. Thewissen. 1990. Evolution of Paleocene and Eocene Phenacodontidae (Mammalia, Condylarthra). University of Michigan Papers on Paleontology 29:1-107 [J. Alroy/J. Alroy/P. Mannion] |