SC-81 (Paleogene of the United States)

Where: Park County, Wyoming (44.3° N, 109.0° W: paleocoordinates 49.7° N, 90.3° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Clarkforkian (56.2 - 54.9 Ma)

Environment/lithology: terrestrial

Reposited in the UMMP

Primary reference: K. D. Rose. 1981. The Clarkforkian Land-Mammal Age and Mammalian Faunal Composition Across the Paleocene-Eocene Boundary. University of Michigan Papers on Paleontology 26:1-197 [J. Alroy/J. Alroy/P. Mannion]more details

PaleoDB collection 15132: authorized by John Alroy, entered by John Alroy on 18.02.1993, edited by Will Clyde

Creative Commons license: CC BY (attribution)

Taxonomic list

Mammalia
 Cimolesta - Coryphodontidae
Coryphodon sp. Owen 1845 pantodont
 Cimolesta -
"Esthonyx grangeri" = Azygonyx grangeri
"Esthonyx grangeri" = Azygonyx grangeri Simpson 1937 tillodont
 Soricomorpha - Nyctitheriidae
"Leptacodon rosei" = Plagioctenodon rosei2
"Leptacodon rosei" = Plagioctenodon rosei2 Gingerich 1987 placental
 Ferae - Viverravidae
Viverravus acutus Matthew and Granger 1915 placental
Didymictis protenus Cope 1874 placental
 Acreodi - Mesonychidae
Dissacus praenuntius Matthew and Granger 1915 condylarth
 Tribosphenida - Phenacodontidae
Ectocion osbornianus Cope 1882 condylarth
Phenacodus intermedius3 Granger 1915 condylarth
Phenacodus vortmani Cope 1880 condylarth
 Procreodi - Arctocyonidae
Thryptacodon cf. antiquus Matthew and Granger 1915 condylarth
 Primates - Paromomyidae
Phenacolemur praecox Matthew 1915 primate
 Primates - Plesiadapidae
Plesiadapis dubius Matthew 1915 primate
 Macroscelidea - Apheliscidae
Haplomylus simpsoni Rose 1981 elephant shrew
 Tribosphenida - Peradectidae
? Mimoperadectes labrus Bown and Rose 1979 marsupial
Reptilia
 Squamata - Anguidae
Xestops vagans1 Marsh 1872 squamates
 Loricata -
"Leidyosuchus formidabilis" = Borealosuchus formidabilis1
"Leidyosuchus formidabilis" = Borealosuchus formidabilis1 Erickson 1976 crocodilian