MP-148 (Eocene of the United States)

Where: Park County, Wyoming (44.6° N, 108.6° W: paleocoordinates 49.2° N, 91.9° 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 15698: authorized by John Alroy, entered by John Alroy on 12.04.1997, edited by Leah Gannon and Will Clyde

Creative Commons license: CC BY (attribution)

Taxonomic list

• may be in Big Horn County, Wa-4
 Amiiformes - Amiidae
Amia sp.1 Linnaeus 1766 bowfin
 Crocodylia - Alligatoridae
Allognathosuchus sp.1 Mook 1921 crocodilian
 Cimolesta - Coryphodontidae
Coryphodon radians1 Cope 1872 pantodont
 Condylarthra - Hyopsodontidae
Hyopsodus latidens1 Denison 1937 condylarth
 Tribosphenida - Phenacodontidae
Phenacodus trilobatus1 Cope 1881 condylarth
Phenacodus intermedius1 Granger 1915 condylarth
 Perissodactyla -
Homogalax protapirinus1 Wortman 1896 odd-toed ungulate
 Perissodactyla - Equidae
"Hyracotherium pernix" = Arenahippus pernix1
"Hyracotherium pernix" = Arenahippus pernix1 Marsh 1876 horse
 Macroscelidea - Apheliscidae
Haplomylus scottianus2 Gingerich 1994 elephant shrew
 Hyaenodonta - Hyaenodontidae
Prototomus martis Gingerich and Deutsch 1989 eutherian