Where: Wyoming (44.6° N, 108.7° W: paleocoordinates 49.4° N, 91.5° W)
• coordinate estimated from map
• small collection-level geographic resolution
When: Willwood Formation, Wasatchian (55.8 - 50.3 Ma)
• Wa-4
• 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 46731: authorized by Will Clyde, entered by Will Clyde on 24.01.2005
Creative Commons license: CC BY (attribution)
Taxonomic list
Actinopteri | |
Lepisosteus sp. Agassiz 1843 gar | |
Reptilia | |
Allognathosuchus sp. Mook 1921 crocodilian | |
Lacertilia indet. lizard | |
Mammalia | |
Apheliscus insidiosus Cope 1874 elephant shrew
Haplomylus scottianus Gingerich 1994 elephant shrew | |
Hyopsodus latidens Denison 1937 condylarth | |
Phenacodus intermedius Granger 1915 condylarth | |
Homogalax protapirinus Wortman 1896 odd-toed ungulate | |
"Hyracotherium pernix" = Arenahippus pernix
"Hyracotherium pernix" = Arenahippus pernix Marsh 1876 horse | |
Diacodexis metsiacus Cope 1882 even-toed ungulate | |
Prototomus phobos Gingerich and Deutsch 1989 creodont | |
Didymictis protenus Cope 1874 placental | |
? Miacis sp. Cope 1872 placental | |
Palaeanodon sp. Matthew 1918 placental | |
Pachyaena ossifraga Cope 1874 condylarth | |
Palaeosinopa sp. Matthew 1901 placental | |
Paramys taurus Korth 1984 rodent
Paramys copei Loomis 1907 rodent | |
Cantius trigonodus Matthew 1915 primate | |
| |
Coryphodon lobatus Cope 1877 pantodont |