East Alheit Pocket (Eocene of the United States)

Also known as UCMP V-5356B-C

Where: Moffat County, Colorado (40.6° N, 108.1° W: paleocoordinates 45.4° N, 91.9° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Wasatch Formation, Wasatchian (55.8 - 50.3 Ma)

Environment/lithology: terrestrial

Size classes: macrofossils, mesofossils

Reposited in the UCMP

Primary reference: 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]more details

PaleoDB collection 15485: authorized by John Alroy, entered by John Alroy on 27.09.1993

Creative Commons license: CC BY (attribution)

Taxonomic list

• 392 m level in local section according to Hill et al. 2000
Mammalia
 Cimolesta - Coryphodontidae
Coryphodon sp. Owen 1845 pantodont
 Cimolesta - Esthonychidae
Esthonyx spatularius6 Cope 1880 tillodont
 Cimolesta - Pantolestidae
Palaeosinopa incerta3 Bown and Schankler 1982 eutherian
 Leptictida - Leptictidae
cf. Prodiacodon tauricinerei1 Jepsen 1930 eutherian
 Primates - Microsyopidae
Niptomomys doreenae17 McKenna 1960 primate
Arctodontomys wilsoni16 Szalay 1969 primate
 Primates - Notharctidae
Cantius mckennai5 Gingerich and Simons 1977 primate
 Primates - Paromomyidae
cf. Simpsonlemur jepseni1 Simpson 1955 primate
 Primates - Omomyidae
Tetonius sp.2 Matthew 1915 primate
third form, "Tetonius homunculus"
Tetonius matthewi2 Bown and Rose 1987 primate
Tetonius mckennai2 Bown and Rose 1987 primate
Teilhardina sp.2 Simpson 1940 primate
 Rodentia - Sciuravidae
? Sciuravidae indet.8 Miller and Gidley 1918 rodent
 Rodentia - Ischyromyidae
Paramys taurus8 Korth 1984 rodent
species "A" of McKenna
Apatosciuravus bifax8 Korth 1984 rodent
"Microparamys sp. A" of Wood
 Condylarthra - Hyopsodontidae
Hyopsodus simplex14 Loomis 1905 condylarth
Hyopsodus loomisi McKenna 1960 condylarth
 Tribosphenida - Phenacodontidae
Copecion ? brachypternus1 Cope 1882 condylarth
 Lipotyphla - Erinaceidae
Dartonius jepseni1 McKenna 1960 hedgehog
 Lipotyphla - Geolabididae
Centetodon patratus n. sp.3 Bown and Schankler 1982 placental
 Perissodactyla -
Cardiolophus radinskyi4 Gingerich 1991 odd-toed ungulate
 Perissodactyla - Palaeotheriidae
Hyracotherium sp.1 Owen 1841 odd-toed ungulate
 Tribosphenida - Nyctitheriidae
cf. Leptacodon sp.10 Matthew and Granger 1921 placental
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 placental
definitely not Marsholestes
 Tribosphenida -
Talpavus sp.2 Marsh 1872 placental
 Creodonta - Oxyaenidae
Dipsalidictis transiens7 Matthew and Granger 1915 creodont
 Ferae - Viverravidae
Didymictis leptomylus13 Cope 1880 placental
Viverravus acutus Matthew and Granger 1915 placental
 Carnivora - Miacidae
Miacis exiguus Matthew and Granger 1915 carnivoran
probably OK, see Gingerich 1983a
 Macroscelidea - Apheliscidae
Haplomylus speirianus Cope 1880 elephant shrew
Apheliscus sp.15 Cope 1875 elephant shrew
: "A. nitidus" of McKenna
 Macroscelidea - Amphilemuridae
cf. Macrocranion nitens1 Matthew 1918 elephant shrew
 Tribosphenida - Arctocyonidae
Chriacus gallinae Matthew and Granger 1915 condylarth
 Acreodi - Mesonychidae
Pachyaena ? ossifraga Cope 1874 condylarth
 Hyaenodonta - Hyaenodontidae
Prototomus martis12 Gingerich and Deutsch 1989 eutherian
Prototomus deimos12 Gingerich and Deutsch 1989 eutherian
Prototomus phobos12 Gingerich and Deutsch 1989 eutherian
Arfia shoshoniensis12 Matthew and Granger 1915 eutherian
Arfia opisthotoma12 Matthew 1901 eutherian
Prolimnocyon haematus12 Gingerich and Deutsch 1989 eutherian
Didelphodus altidens1 Marsh 1872 eutherian
Didelphodus absarokae Cope 1881 eutherian
 Artiodactyla - Diacodexeidae
Diacodexis primus11 Krishtalka and Stucky 1985 even-toed ungulate
 Sarcobora - Apatemyidae
Labidolemur kayi6 Simpson 1929 insectivoran
 Multituberculata - Neoplagiaulacidae
Parectypodus lunatus9 Krause 1982 multituberculate
Ectypodus tardus9 Jepsen 1940 multituberculate
 Multituberculata -
Neoliotomus ultimus9 Granger and Simpson 1928 multituberculate