Little Muddy Creek (Fossil Basin): Tiffanian, Wyoming
collected 1961 1967
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia
- Testudines
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Testudines indet.
Batsch 1788
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"indeterminate fragments of a turtle" | ||||||||||
Mammalia
- Pentacodontidae
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Aphronorus orieli n. sp.
Gazin 1969
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(6 measurements) | ||||||||||
Mammalia
- Macroscelidea
- Apheliscidae
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? Haplaletes sp.
Simpson 1935
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Mammalia
- Macroscelidea
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? Leptacodon ladae
Simpson 1935
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= Adunator ladae
Simpson 1935
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Alroy 2002 | |||||||||
Mammalia
- Condylarthra
- Hyopsodontidae
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cf. Litaletes disjunctus
Simpson 1935
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Promioclaenus cf. acolytus
(Cope 1882)
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(3 measurements) | ||||||||||
Promioclaenus cf. lemuroides
(Matthew 1897)
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(2 measurements) | ||||||||||
Mammalia
- Procreodi
- Arctocyonidae
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Chriacus cf. pelvidens
(Cope 1881)
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(2 measurements) | ||||||||||
Tricentes subtrigonus
(Cope 1881)
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(4 measurements) | ||||||||||
= Mimotricentes cf. subtrigonus
Cope 1881
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Alroy 2002 | |||||||||
recombined as Tricentes subtrigonus | ||||||||||
Chriacus truncatus
Cope 1884
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(4 measurements) | ||||||||||
= cf. Chriacus baldwini
Cope 1882
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Alroy 2002 | |||||||||
Mammalia
- Primates
- Palaechthonidae
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Torrejonia wilsoni
Gazin 1968
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(1 measurement) | ||||||||||
= Torrejonia sirokyi
Szalay 1973
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Gunnell 1989 | |||||||||
Mammalia
- Primates
- Plesiadapidae
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cf. Pronothodectes matthewi
Gidley 1923
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(2 measurements) | ||||||||||
= Nannodectes cf. intermedius
Gazin 1971
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Gingerich et al. 1983 | |||||||||
presumably = "cf. Pronothodectes matthewi" of Gazin, referred to N. gazini by Gingerich 1975, 1976 | ||||||||||
Mammalia
- Multituberculata
- Neoplagiaulacidae
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Neoplagiaulax cf. grangeri
(Simpson 1935)
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Ectypodus powelli
Jepsen 1940
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Mammalia
- Multituberculata
- Ptilodontidae
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Ptilodus cf. montanus
Douglass 1908
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see common names |
Geography
Country: | United States | State/province: | Wyoming | County: | Lincoln |
Coordinates: | 41.6° North, 110.7° West (view map) | ||||
Paleocoordinates: | 47.8° North, 91.4° West | ||||
Basis of coordinate: | stated in text | ||||
Geographic resolution: | outcrop |
Time
Period: | Paleogene | Epoch: | Paleocene |
10 m.y. bin: | Cenozoic 1 | ||
*Period: | Tertiary | ||
Key time interval: | Tiffanian | ||
Age range of interval: | 61.70000 - 56.80000 m.y. ago | ||
* legacy (obsolete) database fields |
Stratigraphy
Formation: | Evanston |
Lithology and environment
Primary lithology: | "siliciclastic" |
Lithology description: "variegated strat" | |
Environment: | terrestrial indet. |
Taphonomy
Modes of preservation: | body |
Size of fossils: | macrofossils,mesofossils |
Disassociated minor elements: | many |
Collection methods and comments
Collection methods: | field collection |
Collection size: | 45 specimens |
Reason for describing collection: | taxonomic analysis |
Museum repositories: | USNM | Collection dates: | 1961 to 1967 |
Metadata
Database number: | 14965 | ||
Authorizer: | J. Alroy | Enterer: | J. Alroy |
Modifier: | J. Alroy | Research group: | vertebrate |
Created: | 2000-05-19 00:00:00 | Last modified: | 2007-06-19 12:26:32 |
Access level: | the public | Released: | 2000-05-19 00:00:00 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
1621. | C. L. Gazin. 1969. A new occurrence of Paleocene mammals in the Evanston Formation, southwestern Wyoming. Smithsonian Contributions to Paleobiology 2:1-16 [J. Alroy/J. Alroy/J. Alroy] |
Secondary references:
6294 | J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari] | |
1671 | ETE 1541 | P. D. Gingerich, P. Houde, and D. W. Krause. 1983. A New Earliest Tiffanian (Late Paleocene) Mammalian Fauna from Bangtail Plateau, Western Crazy Mountain Basin, Montana. Journal of Paleontology 57(5) [J. Alroy/J. Alroy/J. Ju] |
1730 | G. F. Gunnell. 1989. Evolutionary History of Microsyopoidea (Mammalia, ?Primates) and the Relationship Between Plesiadapiformes and Primates. University of Michigan Papers on Paleontology 27:1-157 [J. Alroy/J. Alroy/P. Mannion] |