WW-101 (Eocene of the United States)

Where: Washakie County County, Wyoming (44.1° N, 107.9° W: paleocoordinates 48.7° N, 91.3° W)

• coordinate stated in text

When: Wa-0 mammal zone, Willwood Formation, Early/Lower Eocene (55.8 - 48.6 Ma)

• yellow and white sand and brownish purple mudstone below bright red (probably Upper Purple 2), thus probably between Upper Purples 1 and 2.

Environment/lithology: "floodplain"lithified, paleosol/pedogenic, muddy

• yellow and white sand and brownish purple mudstone below bright red (probably Upper Purple 2), thus probably between Upper Purples 1 and 2.

Primary reference: K. D. Rose, A. E. Chew, R. H. Dunn, M. J. Kraus, H. C. Fricke and S. P. Zack. 2012. Earliest Eocene mammalian fauna from the Paleocene-Eocene Thermal Maximum at Sand Creek Divide, southern Bighorn Basin, Wyoming. University of Michigan Papers on Paleontology 36:1-122 [J. Bloch/J. Bloch]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 154274: authorized by Jonathan Bloch, entered by Jonathan Bloch on 06.02.2014

Creative Commons license: CC BY (attribution)

Taxonomic list

Mammalia
 Theriamorpha - Stylinodontidae
Ectoganus cf. lobdelli Simpson 1929 taeniodont
 Theriamorpha - Metacheiromyidae
Palaeanodon nievelti Gingerich 1989 placental
 Creodonta - Oxyaenidae
Oxyaenidae indet. Cope 1877 creodont
an ungual phalanx
 Creodonta - Hyaenodontidae
Arfia junnei Gingerich 1989 creodont
 Theriamorpha - Viverravidae
Didymictis leptomylus Cope 1880 placental
 Theriamorpha - Phenacodontidae
Copecion davisi Gingerich 1989 condylarth
 Perissodactyla - Equidae
"Hyracotherium sandrae" = Sifrhippus sandrae
"Hyracotherium sandrae" = Sifrhippus sandrae Gingerich 1989 horse
 Artiodactyla - Diacodexeidae
Diacodexis ilicis Gingerich 1989 even-toed ungulate
 Procreodi - Arctocyonidae
Chriacus badgleyi Gingerich 1989 condylarth
 Primates - Paromomyidae
Phenacolemur praecox Matthew 1915 primate
 Theriamorpha - Peradectidae
Mimoperadectes labrus Bown and Rose 1979 marsupial