Smizer Gulch (Eocene of the United States)

Also known as UCM 78051

Where: Rio Blanco County, Colorado (40.0° N, 107.9° W: paleocoordinates 44.8° N, 91.8° W)

• coordinate based on political unit

• small collection-level geographic resolution

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

• said to be early Wasatchian

Environment/lithology: terrestrial

Primary reference: A. J. Kihm. 1984. Early Eocene Mammalian Fauna of the Piceance Creek Basin. Northwestern Colorado. [J. Alroy/J. Alroy/M. Uhen]more details

PaleoDB collection 15222: authorized by John Alroy, entered by John Alroy on 27.09.1993

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Mammalia
 Macroscelidea - Apheliscidae
Apheliscus sp., Haplomylus speirianus
Apheliscus sp. Cope 1875 elephant shrew
Haplomylus speirianus Cope 1880 elephant shrew
 Condylarthra - Hyopsodontidae
Hyopsodus sp., Hyopsodus sp.1
Hyopsodus sp. Leidy 1870 condylarth
large
Hyopsodus sp.1 Leidy 1870 condylarth
 Artiodactyla - Diacodexeidae
Diacodexis sp.1
Diacodexis sp.1 Cope 1882 even-toed ungulate
 Creodonta -
Prolimnocyon atavus
Prolimnocyon atavus Matthew and Granger 1915 creodont
 Rodentia - Ischyromyidae
Paramys excavatus, cf. Acritoparamys atwateri1
Paramys excavatus Loomis 1907 rodent
cf. Acritoparamys atwateri1 Loomis 1907 rodent
 Primates - Microsyopidae
Microsyopidae indet., Arctodontomys wilsoni1
Microsyopidae indet. Osborn and Wortman 1892 primate
Arctodontomys wilsoni1 Szalay 1969 primate
 Primates - Paromomyidae
Phenacolemurinae indet.1, Pulverflumen sp.2
Phenacolemurinae indet.1 Simpson 1955 primate
Pulverflumen sp.2 Robinson and Ivy 1994 primate
large "Phenacolemur sp."
 Primates - Notharctidae
Cantius mckennai
Cantius mckennai Gingerich and Simons 1977 primate
 Theriamorpha - Leptictidae
Prodiacodon cf. tauricinerei
Prodiacodon cf. tauricinerei Jepsen 1930 eutherian
1Alroy 2002; 2Robinson and Ivy 1994