Where: Wyoming (44.6° N, 108.4° W: paleocoordinates 49.4° N, 91.2° W)
• coordinate estimated from map
• small collection-level geographic resolution
When: Willwood Formation, Wasatchian (55.8 - 50.3 Ma)
• Wa-1
• 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 46661: authorized by Will Clyde, entered by Will Clyde on 24.01.2005
Creative Commons license: CC BY (attribution)
Taxonomic list
Pisces | |
"Pisces indet." = Osteichthyes
"Pisces indet." = Osteichthyes Huxley 1880 bony fish | |
Mammalia | |
Arfia zele Gingerich and Deutsch 1989 creodont | |
Diacodexis metsiacus Cope 1882 even-toed ungulate | |
"Hyracotherium grangeri" = Sifrhippus grangeri
"Hyracotherium grangeri" = Sifrhippus grangeri Gingerich 1989 horse | |
Reptilia | |
Reptilia indet. Laurenti 1768 reptile | |
Allognathosuchus sp. Mook 1921 crocodilian | |
Gastropoda | |
Gastropoda indet. Cuvier 1795 snail | |
Bivalvia | |
"Pelecypoda indet." = Bivalvia
"Pelecypoda indet." = Bivalvia Linnaeus 1758 clam |