MP-244 (Eocene of the United States)

Where: Wyoming (44.7° N, 108.8° W: paleocoordinates 49.5° N, 91.5° W)

• coordinate estimated from map

• small collection-level geographic resolution

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

• Wa-2

• 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: W. C. Clyde. 1997. Stratigraphy and mammalian paleontology of the McCullough Peaks, northern Bighorn Basin, Wyoming: Implications for biochronology, basin development, and community reorganization across the Paleocene-Eocene boundary. PhD Thesis, University of Michigan [W. Clyde/W. Clyde/J. Alroy]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 46813: authorized by Will Clyde, entered by Will Clyde on 24.01.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

Actinopteri
 Amiiformes - Amiidae
Amia sp. Linnaeus 1766 bowfin
Reptilia
 Loricata -
"Crocodilia indet." = Crocodylia
"Crocodilia indet." = Crocodylia Owen 1842 crocodilian
Mammalia
 Cimolesta - Coryphodontidae
Coryphodon eocaenus Owen 1846 pantodont
 Cimolesta - Esthonychidae
Esthonyx spatularius Cope 1880 tillodont
 Cimolesta - Pantolestidae
Palaeosinopa incerta Bown and Schankler 1982 eutherian
 Primates - Omomyidae
Teilhardina americana Bown 1976 tarsier
 Primates - Notharctidae
Cantius mckennai Gingerich and Simons 1977 primate
 Rodentia - Ischyromyidae
Paramys sp. Leidy 1871 rodent
 Condylarthra - Hyopsodontidae
Hyopsodus loomisi McKenna 1960 condylarth
 Tribosphenida - Phenacodontidae
Ectocion osbornianus Cope 1882 condylarth
Phenacodus vortmani Cope 1880 condylarth
 Perissodactyla - Equidae
"Hyracotherium grangeri" = Sifrhippus grangeri
"Hyracotherium grangeri" = Sifrhippus grangeri Gingerich 1989 horse
 Creodonta - Oxyaenidae
Oxyaena intermedia Denison 1938 creodont
 Macroscelidea - Apheliscidae
Haplomylus speirianus Cope 1880 elephant shrew
Apheliscus chydaeus Gingerich 1994 elephant shrew
 Tribosphenida - Arctocyonidae
Thryptacodon antiquus Matthew and Granger 1915 condylarth
 Hyaenodonta - Hyaenodontidae
Arfia shoshoniensis Matthew and Granger 1915 eutherian
 Artiodactyla - Diacodexeidae
Diacodexis metsiacus Cope 1882 even-toed ungulate