Where: Wyoming (44.7° N, 108.8° W: paleocoordinates 49.5° N, 91.6° W)
• coordinate estimated from map
• small collection-level geographic resolution
When: Willwood Formation, Wasatchian (55.8 - 50.3 Ma)
• Wa-3
• 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 46792: authorized by Will Clyde, entered by Will Clyde on 24.01.2005
Creative Commons license: CC BY (attribution)
Taxonomic list
Reptilia | |
Allognathosuchus sp. Mook 1921 crocodilian | |
Lacertilia indet. lizard | |
Mammalia | |
Coryphodon eocaenus Owen 1846 pantodont | |
Esthonyx bisulcatus Cope 1874 tillodont | |
Haplomylus speirianus Cope 1880 elephant shrew | |
Hyopsodus loomisi McKenna 1960 condylarth | |
Pachyaena gigantea Osborn and Wortman 1892 condylarth
Pachyaena gracilis Matthew and Granger 1915 condylarth | |
Palaeanodon ignavus Matthew 1918 placental | |
Arfia shoshoniensis Matthew and Granger 1915 creodont
Prototomus phobos Gingerich and Deutsch 1989 creodont
Prototomus martis Gingerich and Deutsch 1989 creodont | |
Oxyaena intermedia Denison 1938 creodont
Oxyaena gulo Matthew and Granger 1915 creodont | |
Viverravus acutus Matthew and Granger 1915 placental
Didymictis protenus Cope 1874 placental
Didymictis leptomylus Cope 1880 placental | |
"Hyracotherium aemulor" = Arenahippus aemulor
"Hyracotherium aemulor" = Arenahippus aemulor Gingerich 1991 horse | |
Homogalax protapirinus Wortman 1896 odd-toed ungulate
Cardiolophus radinskyi Gingerich 1991 odd-toed ungulate | |
Ectocion osbornianus, Copecion brachypternus, Phenacodus intermedius, Phenacodus vortmani, Phenacodus trilobatus
Ectocion osbornianus Cope 1882 condylarth
Copecion brachypternus Cope 1882 condylarth
Phenacodus intermedius Granger 1915 condylarth
Phenacodus vortmani Cope 1880 condylarth
Phenacodus trilobatus Cope 1881 condylarth | |
Diacodexis metsiacus Cope 1882 even-toed ungulate | |
Thryptacodon antiquus Matthew and Granger 1915 condylarth | |
Palaeosinopa incerta Bown and Schankler 1982 placental | |
Paramys taurus Korth 1984 rodent
Acritoparamys atwateri Loomis 1907 rodent | |
Cantius mckennai Gingerich and Simons 1977 primate | |
Teilhardina mathewi tarsier
Teilhardina americana Bown 1976 tarsier | |
Actinopteri | |
Lepisosteus sp. Agassiz 1843 gar |