MP-73 (Eocene of the United States)

Where: Park County, Wyoming (44.4° N, 108.7° W: paleocoordinates 49.2° N, 91.5° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Willwood Formation, Wasatchian (55.8 - 50.3 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. Polly. 1997. Ancestry and Species Definition in Paleontology: A Stratocladistic Analysis of Paleocene-Eocene Viverravidae (Mammalia, Carnivora) from Wyoming. Contributions from the Museum of Paleontology, University of Michigan 30(1):1-53 [J. Alroy/J. Alroy/M. Uhen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 15688: 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
 Crocodylia - Alligatoridae
Allognathosuchus sp. Mook 1921 crocodilian
Aves
  -
Aves indet. Linnaeus 1758 bird
Mammalia
 Condylarthra - Hyopsodontidae
Hyopsodus miticulus Cope 1874 condylarth
 Artiodactyla - Diacodexeidae
Diacodexis metsiacus Cope 1882 even-toed ungulate
 Procreodi - Arctocyonidae
Chriacus sp. Cope 1883 condylarth
 Tribosphenida - Phenacodontidae
Phenacodus sp. Cope 1873 condylarth
 Perissodactyla - Palaeotheriidae
Hyracotherium sp. Owen 1841 odd-toed ungulate
 Ferae -
Vulpavus sp. Marsh 1871 placental
 Ferae - Viverravidae
Didymictis sp. Cope 1875 placental
Didymictis protenus Cope 1874 placental
Viverravus sp. Marsh 1872 placental
Viverravus acutus Matthew and Granger 1915 placental
 Primates - Notharctidae
Cantius abditus Gingerich and Simons 1977 primate