East Alheit Pocket: Wasatchian, Colorado

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Mammalia - Multituberculata - Eucosmodontidae
Neoliotomus ultimus (Granger and Simpson 1928)
Krause 1982
original and current combination Eucosmodon ultimus
Mammalia - Multituberculata - Neoplagiaulacidae
Parectypodus childei (Kühne 1969)
    = Parectypodus lunatus Krause 1982
Krause 1982
replaces ID of Sloan 1981
Ectypodus tardus (Jepsen 1940)
Krause 1982
Mammalia - Leptictidae
Palaeictops tauricinerei (Jepsen 1930)
    = cf. Prodiacodon tauricinerei Jepsen 1930
Alroy 2002
Didelphodus absarokae (Cope 1881)
Mammalia - Apatemyidae
Apatemys cf. kayi (Simpson 1929)
    = Labidolemur kayi Simpson 1929
Gunnell 1989
Mammalia - Coryphodontidae
Coryphodon sp. (Owen 1845)
original and current combination Lophiodon (Coryphodon)
Mammalia - Esthonychidae
Esthonyx spatularius Cope 1880
Gunnell 1989
Mammalia - Macroscelidea - Amphilemuridae
Entomolestes nitens Matthew 1918
    = cf. Macrocranion nitens Matthew 1918
Alroy 2002
Mammalia - Macroscelidea - Apheliscidae
Apheliscus sp. Cope 1875
Rose 1981
: "A. nitidus" of McKenna
Haplomylus speirianus (Cope 1880)
Mammalia - Condylarthra - Hyopsodontidae
Hyopsodus miticulus (Cope 1874)
    = Hyopsodus simplex Loomis 1905
Redline 1997
replaces ID of Gunnell 1989
Hyopsodus loomisi McKenna 1960
Mammalia - Acreodi - Mesonychidae
Pachyaena ? ossifraga Cope 1874
Mammalia - Creodonta - Hyaenodontidae
Arfia shoshoniensis (Matthew and Granger 1915)
Polly 1993
Arfia opisthotoma (Matthew 1901)
Polly 1993
Prototomus deimos Gingerich and Deutsch 1989
Polly 1993
Sinopa sp. Leidy 1871
    = Prototomus phobos Gingerich and Deutsch 1989
Polly 1993
Prototomus martis Gingerich and Deutsch 1989
Polly 1993
Mammalia - Creodonta
Prolimnocyon haematus Gingerich and Deutsch 1989
Polly 1993
Mammalia - Creodonta - Oxyaenidae
Oxyaena sp. Cope 1874
    = Dipsalidictis transiens Matthew and Granger 1915
Gunnell and Gingerich 1991
Mammalia
Miacis exiguus Matthew and Granger 1915
probably OK, see Gingerich 1983a
Mammalia - Viverravidae
Viverravus acutus Matthew and Granger 1915
Didymictis protenus (Cope 1874)
    = Didymictis leptomylus Cope 1880
Polly 1997
Mammalia - Perissodactyla - Palaeotheriidae
Hyracotherium angustidens (Cope 1875)
    = Hyracotherium sp. Owen 1841
Alroy 2002
Mammalia - Perissodactyla
Homogalax primaevus (Wortman 1896)
    = Cardiolophus radinskyi Gingerich 1991
Gingerich 1991
Mammalia - Phenacodontidae
Phenacodus brachypternus Cope 1882
    = Copecion ? brachypternus Cope 1882
Alroy 2002
Mammalia - Diacodexeidae
Diacodexis metsiacus (Cope 1882)
    = Diacodexis primus Krishtalka and Stucky 1985
Krishtalka and Stucky 1985
Mammalia - Procreodi - Arctocyonidae
Chriacus gallinae Matthew and Granger 1915
Mammalia - Geolabididae
Didelphodus ventanus White 1952
    = Didelphodus altidens Marsh 1872
Alroy 2002
original and current combination Centetodon altidens
Metacodon sp. Clark 1936
    = Centetodon patratus n. sp. Bown and Schankler 1982
Bown and Schankler 1982
Mammalia - Nyctitheriidae
cf. Leptacodon sp. Matthew and Granger 1921
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
? Nyctitherium sp. Marsh 1872
definitely not Marsholestes
Mammalia
Anemorhysis tenuiculus (Jepsen 1930)
    = Talpavus sp. Marsh 1872
Bown and Rose 1987
replaces ID of Szalay 1976, in part
Mammalia - Pantolestidae
Palaeosinopa didelphoides (Cope 1881)
    = Palaeosinopa incerta Bown and Schankler 1982
Bown and Schankler 1982
Mammalia
Leptacodon jepseni McKenna 1960
    = Dartonius jepseni McKenna 1960
Alroy 2002
Mammalia - Rodentia - Sciuravidae
? Sciuravidae indet. Miller and Gidley 1918
Korth 1984
Mammalia - Rodentia - Ischyromyidae
Paramys taurus Korth 1984
Korth 1984
species "A" of McKenna
Apatosciuravus bifax Korth 1984
Korth 1984
"Microparamys sp. A" of Wood
Mammalia - Primates - Notharctidae
Pelycodus mckennai Gingerich and Simons 1977
    = Cantius mckennai Gingerich and Simons 1977
Gingerich and Simons 1977
"P. ralstoni"; referred to as "C. ralstoni" by Rose et al. 1999
Mammalia - Primates - Omomyidae
Anemorhysis tenuiculus (Jepsen 1930)
    = Teilhardina sp. Simpson 1940
Bown and Rose 1987
replaces ID of Szalay 1976
Tetonius sp. Matthew 1915
Bown and Rose 1987
third form, "Tetonius homunculus"
Anemorhysis minutus (Loomis 1906)
    = Tetonius mckennai Bown and Rose 1987
Bown and Rose 1987
Tetonius homunculus (Cope 1882)
    = Tetonius matthewi Bown and Rose 1987
Bown and Rose 1987
Mammalia - Primates - Microsyopidae
Microsyops wilsoni Szalay 1969
(6 measurements)
    = Arctodontomys wilsoni Szalay 1969
Szalay 1969
"Cynodontomys alfi"
Niptomomys doreenae McKenna 1960
Szalay 1969
Mammalia - Primates - Paromomyidae
Phenacolemur jepseni Simpson 1955
    = cf. Simpsonlemur jepseni Simpson 1955
Alroy 2002
see common names

Geography
Country:United States State/province:Colorado County:Moffat
Coordinates: 40.6° North, 108.1° West (view map)
Paleocoordinates:45.4° North, 91.9° West
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:54.90000 - 50.50000 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:2009-07-15 19:53:42
Access level:the public Released:1993-09-27 00:00:00
Creative Commons license:CC BY
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]