MP-151 (Eocene of the United States)

Where: Park County, Wyoming (44.5° N, 108.7° W: paleocoordinates 49.1° N, 92.0° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Willwood Formation, Early/Lower Eocene (55.8 - 48.6 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: fluvial-lacustrine; lithified siliciclastic sediments

Size classes: macrofossils, mesofossils

Reposited in the UMMP

Collection methods: surface (float), surface (in situ),

Primary reference: P. D. Gingerich and H. A. Deutsch. 1989. Systematics and Evolution of Early Eocene Hyaenodontidae (Mammalia, Creodonta) in the Clarks Fork Basin, Wyoming. Contributions from the Museum of Paleontology, University of Michigan 27(13):327-391 [J. Alroy/J. Alroy/J. Marcot]more details

PaleoDB collection 15700: authorized by John Alroy, entered by John Alroy on 27.09.1993, edited by Leah Gannon and Will Clyde

Creative Commons license: CC BY (attribution)

Taxonomic list

• may be in Big Horn County, Wa-5
Mammalia
 Rodentia - Ischyromyidae
Microparamys hunterae1 Ivy 1990 rodent
 Primates - Microsyopidae
Microsyops angustidens1 Matthew 1915 primate
 Primates - Notharctidae
Cantius abditus1 Gingerich and Simons 1977 primate
 Perissodactyla -
"Hyracotherium cristatum" = Systemodon tapirinus1, Homogalax protapirinus1
"Hyracotherium cristatum" = Systemodon tapirinus1 Cope 1875 odd-toed ungulate
Homogalax protapirinus1 Wortman 1896 odd-toed ungulate
 Perissodactyla - Equidae
"Hyracotherium pernix" = Arenahippus pernix1
"Hyracotherium pernix" = Arenahippus pernix1 Marsh 1876 horse
 Theriamorpha - Phenacodontidae
Phenacodus vortmani1 Cope 1880 condylarth
 Artiodactyla - Diacodexeidae
"Diacodexis robustus" = Bunophorus robustus1
"Diacodexis robustus" = Bunophorus robustus1 Sinclair 1914 even-toed ungulate
 Creodonta - Oxyaenidae
Oxyaena intermedia1 Denison 1938 creodont
 Creodonta - Hyaenodontidae
Tritemnodon strenuus Cope 1875 creodont
 Theriamorpha - Viverravidae
Didymictis protenus3 Cope 1874 placental
Viverravus acutus3 Matthew and Granger 1915 placental
 Theriamorpha -
Miacis petilus1 Gingerich 1983 placental
Miacis exiguus1 Matthew and Granger 1915 placental
Vulpavus australis1 Matthew and Granger 1915 placental
 Theriamorpha - Metacheiromyidae
Palaeanodon sp.1 Matthew 1918 placental
Palaeanodon ignavus2 Matthew 1918 placental
 Condylarthra - Hyopsodontidae
Hyopsodus simplex1 Loomis 1905 condylarth
 Cimolesta - Coryphodontidae
Coryphodon sp.1 Owen 1845 pantodont