East Alheit Pocket: Wasatchian, Colorado

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Mammalia - Multituberculata - Eucosmodontidae
Krause 1982
Mammalia - Multituberculata - Neoplagiaulacidae
Krause 1982
replaces ID of Sloan 1981
Krause 1982
Mammalia - Rodentia - Sciuravidae
? Sciuravidae indet. Miller and Gidley 1918
Korth 1984
Mammalia - Rodentia - Ischyromyidae
Korth 1984
"Microparamys sp. A" of Wood
Korth 1984
species "A" of McKenna
Mammalia - Primates - Microsyopidae
Szalay 1969
(6 measurements)
Szalay 1969
"Cynodontomys alfi"
Mammalia - Primates - Paromomyidae
Phenacolemur jepseni Simpson 1955
    = cf. Simpsonlemur jepseni Simpson 1955
Alroy 2002
Mammalia - Primates - Omomyidae
Bown and Rose 1987
third form, "Tetonius homunculus"
Anemorhysis minutus (Loomis 1906)
Bown and Rose 1987
Bown and Rose 1987
Bown and Rose 1987
replaces ID of Szalay 1976
Mammalia - Primates - Notharctidae
Gingerich and Simons 1977
"P. ralstoni"; referred to as "C. ralstoni" by Rose et al. 1999
Mammalia
Bown and Rose 1987
replaces ID of Szalay 1976, in part
Mammalia - Pantolestidae
Bown and Schankler 1982
Mammalia
Alroy 2002
Mammalia - Geolabididae
Metacodon sp. Clark 1936
Bown and Schankler 1982
Alroy 2002
Mammalia - Nyctitheriidae
definitely not Marsholestes
Krishtalka 1976
since this is said to be the same as the Powder River species, it presumably does not belong to Leptacodon sensu Bown and Schankler 1980
Mammalia - Phenacodontidae
Alroy 2002
Mammalia - Perissodactyla - Palaeotheriidae
    = Hyracotherium sp. Owen 1841
Alroy 2002
Mammalia - Perissodactyla
Gingerich 1991
Mammalia - Procreodi - Arctocyonidae
Mammalia - Diacodexeidae
Krishtalka and Stucky 1985
Mammalia - Acreodi - Mesonychidae
Mammalia - Creodonta - Hyaenodontidae
Polly 1993
Arfia opisthotoma (Matthew 1901)
Polly 1993
Polly 1993
Polly 1993
Sinopa sp. Leidy 1871
Polly 1993
Mammalia - Creodonta
Polly 1993
Mammalia - Creodonta - Oxyaenidae
Oxyaena sp. Cope 1874
Gunnell and Gingerich 1991
Mammalia
probably OK, see Gingerich 1983a
Mammalia - Viverravidae
    = Didymictis leptomylus Cope 1880
Polly 1997
Mammalia - Condylarthra - Hyopsodontidae
Redline 1997
replaces ID of Gunnell 1989
Mammalia - Macroscelidea - Apheliscidae
Apheliscus sp. Cope 1875
Rose 1981
: "A. nitidus" of McKenna
Mammalia - Macroscelidea - Amphilemuridae
Alroy 2002
Mammalia - Coryphodontidae
Mammalia - Esthonychidae
Gunnell 1989
Mammalia - Apatemyidae
Gunnell 1989
Mammalia - Leptictidae
Alroy 2002
see common names

Geography
Country:United States State/province:Colorado County:Moffat
Coordinates: 40.6° North, 108.1° West (view map)
Paleocoordinates:48.5° North, 81.7° West (Wright 2013)
Basis of coordinate:based on political unit
Geographic resolution:small collection
Time
Period: Paleogene Epoch: Eocene
Stage: Ypresian 10 m.y. bin: Cenozoic 2
*Period:Tertiary
Key time interval: Wasatchian
Age range of interval: 54.9 - 50.5 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Wasatch
Local section:Alhet Local bed:1
Local order:bottom to top
Lithology and environment
Environment:terrestrial indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils,mesofossils
Collection methods and comments
Collection size:713 specimens
Museum repositories:UCMP
Taxonomic list comments:392 m level in local section according to Hill et al. 2000
Metadata
Also known as:UCMP V-5356B-C
Database number:15485
Authorizer:J. Alroy Enterer:J. Alroy
Modifier:J. Alroy Research group:vertebrate
Created:1993-09-27 00:00:00 Last modified:2025-02-22 15:12:02
Access level:the public Released:1993-09-27 00:00:00
Creative Commons license:CC0
Reference information

Primary reference:
2528. M. C. McKenna. 1960. Fossil Mammalia from the early Wasatchian Four Mile fauna, Eocene of northwest Colorado. University of California Publications in Geological Sciences 37(1):1-130 [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]
1123 T. M. Bown and K. D. Rose. 1987. Patterns of Dental Evolution in Early Eocene Anaptomorphine Primates (Omomyidae) from the Bighorn Basin, Wyoming. Paleontological Society Memoir 23:1-162 [J. Alroy/J. Alroy/J. Ju]
1125 T. M. Bown and D. Schankler. 1982. A review of the Proteutheria and Insectivora of the Willwood Formation (Lower Eocene), Bighorn Basin, Wyoming. United States Geological Survey Bulletin 1523:1-79 [J. Alroy/J. Alroy/J. Ju]
1660 P. D. Gingerich. 1991. Systematics and Evolution of Early Eocene Perissodactyla (Mammalia) in the Clarks Fork Basin, Wyoming. Contributions from the Museum of Paleontology, University of Michigan 28(8):181-213 [J. Alroy/J. Alroy/P. Mannion]
1675 P. D. Gingerich and E. L. Simons. 1977. Systematics, phylogeny, and evolution of early Eocene Adapidae (Mammalia, Primates) in North America. Contributions from the Museum of Paleontology, University of Michigan 24(22):245-279 [J. Alroy/J. Alroy/M. Uhen]
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]
1745 G. F. Gunnell and P. D. Gingerich. 1991. Systematics and Evolution of Late Paleocene and Early Eocene Oxyaenidae (Mammalia, Creodonta) in the Clarks Fork Basin, Wyoming. Contributions from the Museum of Paleontology, University of Michigan 28(7):141-180 [J. Alroy/J. Alroy/J. Marcot]
2105 W. W. Korth. 1984. Earliest Tertiary evolution and radiation of rodents in North America. Bulletin of Carnegie Museum of Natural History 24:1-71 [J. Alroy/J. Alroy/J. Marcot]
2158 D. W. Krause. 1982. Multituberculates from the Wasatchian Land-Mammal Age, Early Eocene, of Western North America. Journal of Paleontology 56(2):271-294 [J. Alroy/J. Alroy/J. Ju]
2171 L. Krishtalka. 1976. North American Nyctitheriidae (Mammalia, Insectivora). Annals of Carnegie Museum 46(2):7-28 [J. Alroy/J. Alroy/M. Uhen]
2183 L. Krishtalka and R. K. Stucky. 1985. Revision of the Eocene Wind River Faunas, Early Eocene of Central Wyoming. Part 7. Revision of Diacodexis (Mammalian, Artiodactyla). Annals of Carnegie Museum 54(14):413-486 [J. Alroy/J. Alroy/J. Marcot]
2785 P. D. Polly. 1993. Hyaenodontidae (Creodonta, Mammalia) from the Early Eocene Four Mile Fauna and their biostratigraphic implications. PaleoBios 14(4):1-10 [J. Alroy/J. Alroy/J. Ju]
2787 P. D. Polly. 1997. Ancestry and Species Definition in Paleontology: A Stratocladistic Analysis of Paleocene-Eocene Viverravidae (Mammalia, Carnivora) from Wyoming. Contributions from the Museum of Paleontology, University of Michigan 30(1):1-53 [J. Alroy/J. Alroy/M. Uhen]
6223 A. D. Redline. 1997. Revision of the Wind River faunas, early Eocene of central Wyoming. Part 13. Systematics and phylogenetic pattern of early Eocene Hyopsodus (Mammalia: Condylarthra). Annals of Carnegie Museum 66(1):1-81 [J. Alroy/J. Alroy/J. Alroy]
2953 K. D. Rose. 1981. The Clarkforkian Land-Mammal Age and Mammalian Faunal Composition Across the Paleocene-Eocene Boundary. University of Michigan Papers on Paleontology 26:1-197 [J. Alroy/J. Alroy/P. Mannion]
3348 F. S. Szalay. 1969. Mixodectidae, Microsyopidae, and the insectivore-primate transition. Bulletin of the American Museum of Natural History 140(4):193-330 [J. Alroy/J. Alroy/J. Alroy]
3350 F. S. Szalay. 1969. Uintasoricinae, a new subfamily of early Tertiary mammals (?Primates). American Museum Novitates 2363 [J. Alroy/J. Alroy/J. Ju]