PBDB Collection

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

Show authors, comments, and common names

Mammalia
Multituberculata - Eucosmodontidae	"Neoliotomus ultimus" = Eucosmodon ultimus⁹ "Neoliotomus ultimus" = Eucosmodon ultimus⁹ Granger and Simpson 1928 multituberculate
Multituberculata - Neoplagiaulacidae	Parectypodus lunatus⁹, Ectypodus tardus⁹ Parectypodus lunatus⁹ Krause 1982 multituberculate Ectypodus tardus⁹ Jepsen 1940 multituberculate
Theriamorpha - Leptictidae	cf. Prodiacodon tauricinerei¹, Didelphodus absarokae cf. Prodiacodon tauricinerei¹ Jepsen 1930 eutherian Didelphodus absarokae Cope 1881 eutherian
Cimolesta - Apatemyidae	Labidolemur kayi⁶ Labidolemur kayi⁶ Simpson 1929 eutherian
Cimolesta - Coryphodontidae	Coryphodon sp. Coryphodon sp. Owen 1845 pantodont
Cimolesta - Esthonychidae	Esthonyx spatularius⁶ Esthonyx spatularius⁶ Cope 1880 tillodont
Macroscelidea - Amphilemuridae	cf. Macrocranion nitens¹ cf. Macrocranion nitens¹ Matthew 1918 elephant shrew
Macroscelidea - Apheliscidae	Apheliscus sp.¹⁵, Haplomylus speirianus Apheliscus sp.¹⁵ Cope 1875 elephant shrew : "A. nitidus" of McKenna Haplomylus speirianus Cope 1880 elephant shrew
Condylarthra - Hyopsodontidae	Hyopsodus simplex¹⁴, Hyopsodus loomisi Hyopsodus simplex¹⁴ Loomis 1905 condylarth Hyopsodus loomisi McKenna 1960 condylarth
Acreodi - Mesonychidae	Pachyaena ? ossifraga Pachyaena ? ossifraga Cope 1874 condylarth
Creodonta - Hyaenodontidae	Arfia shoshoniensis¹², Arfia opisthotoma¹², Prototomus deimos¹², Prototomus phobos¹², Prototomus martis¹² Arfia shoshoniensis¹² Matthew and Granger 1915 creodont Arfia opisthotoma¹² Matthew 1901 creodont Prototomus deimos¹² Gingerich and Deutsch 1989 creodont Prototomus phobos¹² Gingerich and Deutsch 1989 creodont Prototomus martis¹² Gingerich and Deutsch 1989 creodont
Creodonta -	Prolimnocyon haematus¹² Prolimnocyon haematus¹² Gingerich and Deutsch 1989 creodont
Creodonta - Oxyaenidae	Dipsalidictis transiens⁷ Dipsalidictis transiens⁷ Matthew and Granger 1915 creodont
Theriamorpha -	Miacis exiguus Miacis exiguus Matthew and Granger 1915 placental probably OK, see Gingerich 1983a
Theriamorpha - Viverravidae	Viverravus acutus, Didymictis leptomylus¹³ Viverravus acutus Matthew and Granger 1915 placental Didymictis leptomylus¹³ Cope 1880 placental
Perissodactyla - Palaeotheriidae	Hyracotherium sp.¹ Hyracotherium sp.¹ Owen 1841 odd-toed ungulate
Perissodactyla -	Cardiolophus radinskyi⁴ Cardiolophus radinskyi⁴ Gingerich 1991 odd-toed ungulate
Theriamorpha - Phenacodontidae	Copecion ? brachypternus¹ Copecion ? brachypternus¹ Cope 1882 condylarth
Artiodactyla - Diacodexeidae	Diacodexis primus¹¹ Diacodexis primus¹¹ Krishtalka and Stucky 1985 even-toed ungulate
Procreodi - Arctocyonidae	Chriacus gallinae Chriacus gallinae Matthew and Granger 1915 condylarth
Theriamorpha - Geolabididae	"Didelphodus altidens" = Centetodon altidens¹, Centetodon patratus n. sp.³ "Didelphodus altidens" = Centetodon altidens¹ Marsh 1872 placental Centetodon patratus n. sp.³ Bown and Schankler 1982 placental
Theriamorpha - Nyctitheriidae	cf. Leptacodon sp.¹⁰, ? Nyctitherium sp. 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
Theriamorpha -	Talpavus sp.² Talpavus sp.² Marsh 1872 placental
Theriamorpha - Pantolestoidae	Palaeosinopa incerta³ Palaeosinopa incerta³ Bown and Schankler 1982 placental
Theriamorpha - Erinaceoidae	Dartonius jepseni¹ Dartonius jepseni¹ McKenna 1960 placental
Rodentia - Sciuravidae	? Sciuravidae indet.⁸ ? Sciuravidae indet.⁸ Miller and Gidley 1918 rodent
Rodentia - Ischyromyidae	Paramys taurus⁸, Apatosciuravus bifax⁸ Paramys taurus⁸ Korth 1984 rodent species "A" of McKenna Apatosciuravus bifax⁸ Korth 1984 rodent "Microparamys sp. A" of Wood
Primates - Notharctidae	Cantius mckennai⁵ Cantius mckennai⁵ Gingerich and Simons 1977 primate
Primates - Omomyidae	Teilhardina sp.², Tetonius sp.², Tetonius mckennai², Tetonius matthewi² Teilhardina sp.² Simpson 1940 tarsier Tetonius sp.² Matthew 1915 tarsier third form, "Tetonius homunculus" Tetonius mckennai² Bown and Rose 1987 tarsier Tetonius matthewi² Bown and Rose 1987 tarsier
Primates - Microsyopidae	Arctodontomys wilsoni¹⁶, Niptomomys doreenae¹⁷ Arctodontomys wilsoni¹⁶ Szalay 1969 primate Niptomomys doreenae¹⁷ McKenna 1960 primate
Primates - Paromomyidae	cf. Simpsonlemur jepseni¹ cf. Simpsonlemur jepseni¹ Simpson 1955 primate

¹Alroy 2002; ²Bown and Rose 1987; ³Bown and Schankler 1982; ⁴Gingerich 1991; ⁵Gingerich and Simons 1977; ⁶Gunnell 1989; ⁷Gunnell and Gingerich 1991; ⁸Korth 1984; ⁹Krause 1982; ¹⁰Krishtalka 1976; ¹¹Krishtalka and Stucky 1985; ¹²Polly 1993; ¹³Polly 1997; ¹⁴Redline 1997; ¹⁵Rose 1981; ¹⁶Szalay 1969; ¹⁷Szalay 1969