SC-117 (Paleogene of the United States)

Where: Park County, Wyoming (44.3° N, 109.0° W: paleocoordinates 49.6° N, 90.3° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Fort Union Formation, Clarkforkian (56.2 - 54.9 Ma)

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

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

Purpose of describing collection: taxonomic analysis

PaleoDB collection 15152: authorized by John Alroy, entered by John Alroy on 18.02.1993, edited by Will Clyde and Patricia Holroyd

Creative Commons license: CC BY (attribution)

Taxonomic list

• meter level said to be 1370 m by Gunnell and Gingerich 1991, Bowen and Bloch 2002, and appears to be 1340 m in fig. 3
Reptilia
 Loricata -
"Leidyosuchus formidabilis" = Borealosuchus formidabilis2
"Leidyosuchus formidabilis" = Borealosuchus formidabilis2 Erickson 1976 crocodilian
 Squamata - Anguidae
Melanosaurus maximus2 Gilmore 1928 squamates
Mammalia
 Multituberculata - Microcosmodontidae
Microcosmodon rosei Krause 1980 multituberculate
 Cimolesta - Coryphodontidae
Coryphodon sp. Owen 1845 pantodont
 Cimolesta - Titanoideidae
Titanoides nanus4 Gingerich 1996 pantodont
new material
 Cimolesta -
"Esthonyx ancylion" = Azygonyx ancylion
"Esthonyx ancylion" = Azygonyx ancylion Gingerich and Gunnell 1979 tillodont
 Macroscelidea -
"cf. Diacocherus minutus" = Adunator minutus1
"cf. Diacocherus minutus" = Adunator minutus1 Jepsen 1930 elephant shrew
 Creodonta - Oxyaenidae
Dipsalidictis aequidens5 Matthew and Granger 1915 creodont
 Theriamorpha - Viverravidae
Viverravus laytoni8 Gingerich and Winkler 1985 placental
Didymictis proteus8 Polly 1997 placental
 Theriamorpha - Phenacodontidae
Ectocion osbornianus Cope 1882 condylarth
Phenacodus intermedius9 Granger 1915 condylarth
Phenacodus vortmani Cope 1880 condylarth
 Procreodi - Arctocyonidae
Thryptacodon cf. antiquus Matthew and Granger 1915 condylarth
 Theriamorpha - Nyctitheriidae
Plagioctenodon thewisseni n. sp.7 Manz and Bloch 2015 placental
 Theriamorpha - Erinaceoidae
Leipsanolestes siegfriedti Simpson 1928 placental
 Primates - Carpolestidae
Carpolestes simpsoni3 Bloch and Gingerich 1998 primate
new specimens
 Primates - Plesiadapidae
Plesiadapis cookei Jepsen 1930 primate
 Theriamorpha - Peradectidae
Peradectes protinnominatus6 McKenna 1960 marsupial