Where: Park County, Wyoming (44.6° N, 108.9° W: paleocoordinates 49.2° N, 92.3° W)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Willwood Formation, Early/Lower Eocene (55.8 - 48.6 Ma)
• group of beds-level stratigraphic resolution
Environment/lithology: fluvial-lacustrine; lithified siliciclastic sediments and red mudstone
Size classes: macrofossils, mesofossils
Reposited in the UMMP
Collection methods: surface (float), surface (in situ),
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: paleoecologic analysis
PaleoDB collection 27350: authorized by John Alroy, entered by John Alroy on 03.12.2002
Creative Commons license: CC BY (attribution)
Taxonomic list
Actinopteri | |
Lepisosteus sp. Agassiz 1843 gar | |
Mammalia | |
Thryptacodon barae Gingerich 1989 condylarth | |
Reptilia | |
Melanosaurus maximus Gilmore 1928 squamates |