Where: Wyoming (44.5° N, 108.7° W: paleocoordinates 49.3° N, 91.6° W)
• coordinate estimated from map
• small collection-level geographic resolution
When: Willwood Formation, Wasatchian (55.8 - 50.3 Ma)
• Wa-6
• 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 46747: authorized by Will Clyde, entered by Will Clyde on 24.01.2005
Creative Commons license: CC BY (attribution)
Taxonomic list
Reptilia | |
Testudines indet. Batsch 1788 turtle | |
Lacertilia indet. lizard | |
Mammalia | |
Coryphodon sp. Owen 1845 pantodont | |
Hyopsodus simplex Loomis 1905 condylarth | |
"Hyracotherium pernix" = Arenahippus pernix
"Hyracotherium pernix" = Arenahippus pernix Marsh 1876 horse | |
Homogalax protapirinus, "Hyracotherium cristatum" = Systemodon tapirinus
Homogalax protapirinus Wortman 1896 odd-toed ungulate
"Hyracotherium cristatum" = Systemodon tapirinus Cope 1875 odd-toed ungulate | |
"Diacodexis robustus" = Bunophorus robustus, Diacodexis metsiacus
"Diacodexis robustus" = Bunophorus robustus Sinclair 1914 even-toed ungulate
Diacodexis metsiacus Cope 1882 even-toed ungulate | |
Anacodon ursidens Cope 1882 condylarth |