Scarritt Quarry: Tiffanian, Montana
collected by D.R. Krause 1985
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Reptilia
- Testudines
- Trionychidae
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Axestemys montinsana n. sp.
Vitek 2012
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Vitek 2012 | 1 specimen | ||||||||
| Holotype UMMP 27029, a skull, partial lower jaw, partial carapace, fragmentary entoplastron, hyoplastron, and hypoplastron, xiphiplastron, five cervical vertebrae, a partial pelvic girdle, two humeri, a femur, and various disarticulated appendicular elements | ||||||||||
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Mammalia
- Multituberculata
- Ptilodontidae
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Ptilodus sp.
Cope 1881
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| two species, both said to be new; one of them is P. sp. "C" according to Gunnell 1994 | ||||||||||
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Mammalia
- Multituberculata
- Neoplagiaulacidae
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Neoplagiaulax sp.
Lemoine 1882
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| said to be new | ||||||||||
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Neoplagiaulax hunteri n. sp.
(Simpson 1936)
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Mesodma pygmaea
Sloan 1987
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Ectypodus cf. powelli
Jepsen 1940
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Mammalia
- Apatemyidae
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Unuchinia asaphes n. sp.
(Simpson 1936)
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Mammalia
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Titanoides sp.
Gidley 1917
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Mammalia
- Cimolestidae
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Palaeosinopa simpsoni n. sp.
Van Valen 1967
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Van Valen 1967 | |||||||||
| AMNH 33991 - type (Right M1); referred specimen: AMNH 33828 (Right M2); considered a junior synonym of Paleotomus senior by Krause and Gingerich 1983 | ||||||||||
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= Paleotomus senior
Simpson 1937
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Scott et al. 2002 | |||||||||
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Paleotomus senior n. sp.
(Simpson 1937)
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| (2 measurements) | ||||||||||
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Mammalia
- Macroscelidea
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Litocherus notissimus n. sp.
(Simpson 1936)
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Mammalia
- Acreodi
- Mesonychidae
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Dissacus sp.
Cope 1881
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Mammalia
- Viverravidae
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Protictis sp.
(Matthew)
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Mammalia
- Procreodi
- Arctocyonidae
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Thryptacodon cf. australis
Simpson 1935
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Chriacus cf. pelvidens
(Cope 1881)
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Claenodon montanensis
(Gidley 1919)
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= Arctocyon montanensis
Gidley 1919
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Alroy 2002 | |||||||||
| synonym of Arctocyon corrugatus | ||||||||||
| may include arctocyonid mentioned by Thewissen 1990 that was identified as "Tetraclaenodon sp." by Simpson 1936c | ||||||||||
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Mammalia
- Nyctitheriidae
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Leptacodon cf. tener
Matthew and Granger 1921
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| (1 measurement) | ||||||||||
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Mammalia
- Pantolestidae
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Propalaeosinopa diluculi
(Simpson 1935)
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| includes type of "Bessoecetor thomsoni" | ||||||||||
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= Bessoecetor septentrionalis
Russell 1929
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Scott et al. 2002 | |||||||||
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Mammalia
- Primates
- Carpolestidae
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Carpodaptes hazelae n. sp.
Simpson 1936
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| (1 measurement) | ||||||||||
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Mammalia
- Primates
- Plesiadapidae
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Plesiadapis anceps n. sp.
Simpson 1936
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| (1 measurement) | ||||||||||
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Nannodectes sp.
Gingerich 1975
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Mammalia
- Primates
- Paromomyidae
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Ignacius frugivorus
Matthew and Granger 1921
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Mammalia
- Dermoptera
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Elpidophorus patratus n. sp.
Simpson 1936
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= Elpidophorus elegans
Simpson 1927
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Alroy 2002 | |||||||||
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Mammalia
- Proteutheria
- Palaeoryctidae
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Pararyctes pattersoni
Van Valen 1966
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| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Montana | County: | Sweetgrass |
| Coordinates: | 45.8° North, 109.8° West (view map) | ||||
| Paleocoordinates: | 51.8° North, 89.1° West | ||||
| Basis of coordinate: | based on political unit | ||||
| Geographic resolution: | small collection |
Time
| Period: | Paleogene | Epoch: | Paleocene |
| 10 m.y. bin: | Cenozoic 1 | ||
| *Period: | Tertiary | ||
| Key time interval: | Tiffanian | ||
| Age range of interval: | 60.90000 - 56.20000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Formation: | Melville | ||||
| Local section: | Crazy | Local bed: | 3880 ft | ||
| Local order: | bottom to top | ||||
| Stratigraphy comments: in a stratigraphically isolated reversed polarity zone interpreted as chron C26r: Butler et al. 1987 Scarritt Quarry, (early Tiffanian, Ti2) Melville Formation, eastern Crazy Mountains Basin, Montana, USA | |||||
Lithology and environment
| Primary lithology: | not reported |
| Environment: | terrestrial indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils,mesofossils |
Collection methods and comments
| Collection methods: | selective quarrying,surface (in situ),field collection,survey of museum collection | ||
| Collection size: | 772 specimens | ||
| Reason for describing collection: | general faunal/floral analysis | ||
| Collectors: | D.R. Krause | Collection dates: | 1985 |
| Taxonomic list comments:see Simpson 1937a for level in CMB section exact NISP counts are given and sum to 772; however, Hartman and Krause 1993 state that there are "over 1000 identifiable specimens" many of the types are described in Simpson 1936c | |||
Metadata
| Also known as: | Simpson's Locality 56 | ||
| Database number: | 15064 | ||
| Authorizer: | J. Alroy, R. Benson | Enterer: | J. Alroy, R. Benson |
| Modifier: | R. Benson | Research group: | vertebrate |
| Created: | 1993-02-18 00:00:00 | Last modified: | 2013-03-28 12:03:58 |
| Access level: | the public | Released: | 1993-02-18 00:00:00 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 2164. | D. W. Krause and M. C. Maas. 1990. The biogeographic origins of late Paleocene - early Eocene mammalian immigrants to the Western Interior of North America. Geological Society of America Special Paper 243:71-105 [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] | |
| 44033 | L. Van Valen. 1967. New Paleocene insectivores and insectivore classification. Bulletin of the American Museum of Natural History 135(5):217-284 [P. Mannion/P. Mannion] | |
| 46025 | N. S. Vitek. 2012. Giant fossil soft-shelled turtles of North America. Palaeontologia Electronica 15(1):13A [R. Benson/R. Benson/O. Alfaro] |