Where: Park County, Wyoming (44.3° N, 109.0° W: paleocoordinates 49.2° N, 91.9° W)
• coordinate based on political unit
• small collection-level geographic resolution
When: Willwood Formation, Wasatchian (55.8 - 50.3 Ma)
Environment/lithology: terrestrial
Reposited in the UMMP
Primary reference: P. D. Gingerich. 1989. New earliest Wasatchian mammalian fauna from the Eocene of northwestern Wyoming: composition and diversity in a rarely sampled high-floodplain assemblage. University of Michigan Papers on Paleontology 28:1-97 [J. Alroy/J. Alroy/J. Alroy]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 15760: authorized by John Alroy, entered by John Alroy on 18.02.1993
Creative Commons license: CC BY (attribution)
Taxonomic list
Chron 24R: Butler et al. 1981
Gastropoda | |
Pleuroceridae indet. Thiele 1929 snail | |
"Hydrobia" sp. Hartmann 1821 snail | |
cf. Gyraulus sp. Charpentier 1837 snail | |
Actinopteri | |
Lepisosteus sp. Agassiz 1843 gar | |
Reptilia | |
Crocodylia indet. crocodilian | |
Melanosaurus maximus Gilmore 1928 squamates | |
Mammalia | |
Hyopsodus loomisi McKenna 1960 condylarth | |
Cantius torresi Gingerich 1986 primate | |
Arfia junnei Gingerich 1989 creodont | |
Copecion davisi Gingerich 1989 condylarth
Ectocion parvus Granger 1915 condylarth | |
"Hyracotherium sandrae" = Sifrhippus sandrae
"Hyracotherium sandrae" = Sifrhippus sandrae Gingerich 1989 horse | |
Mimoperadectes labrus n. sp.
| |
Angiospermae | |
Celtis phenacodorum hackberry |