MP-76 (Eocene of the United States)

Where: Park County, Wyoming (44.5° N, 108.8° W: paleocoordinates 49.2° N, 92.2° 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

Primary reference: 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]more details

PaleoDB collection 15690: authorized by John Alroy, entered by John Alroy on 21.09.1998, edited by Leah Gannon and Will Clyde

Creative Commons license: CC BY (attribution)

Taxonomic list

• may be in Big Horn County, Wa-6
Reptilia
 Squamata - Anguidae
Glyptosaurus sp.1 Marsh 1871 squamates
Mammalia
 Primates - Microsyopidae
Microsyops latidens1 Cope 1882 primate
 Primates - Omomyidae
Absarokius abbotti1 Loomis 1906 tarsier
 Primates - Notharctidae
Cantius abditus1 Gingerich and Simons 1977 primate
 Rodentia - Ischyromyidae
Paramys sp.1 Leidy 1871 rodent
 Perissodactyla -
Homogalax sp.1 Hay 1899 odd-toed ungulate
Heptodon sp.1 Cope 1882 odd-toed ungulate
 Perissodactyla - Equidae
"Hyracotherium craspedotum" = Xenicohippus craspedotum1
"Hyracotherium craspedotum" = Xenicohippus craspedotum1 Cope 1880 horse
 Creodonta - Oxyaenidae
Oxyaena forcipata Cope 1874 creodont
 Ferae - Viverravidae
Didymictis protenus2 Cope 1874 placental
Viverravus sp.1 Marsh 1872 placental
Viverravus acutus2 Matthew and Granger 1915 placental
 Carnivora -
Vulpavus sp.1 Marsh 1871 carnivoran
 Trogontia - Esthonychidae
Esthonyx bisulcatus1 Cope 1874 tillodont
 Tribosphenida - Arctocyonidae
Anacodon sp.1 Cope 1882 condylarth
 Ungulata - Hyopsodontidae
Hyopsodus minor1 Loomis 1905 condylarth
Hyopsodus miticulus1 Cope 1874 condylarth
 Ungulata - Diacodexeidae
Diacodexis metsiacus1 Cope 1882 even-toed ungulate
 Ungulata - Phenacodontidae
Phenacodus sp.1 Cope 1873 condylarth
 Acreodi - Mesonychidae
? Pachyaena sp.1 Cope 1874 condylarth
 Hyaenodonta -
Didelphodus sp.1 Cope 1882 eutherian