MP-86 (Eocene of the United States)

Where: Park County, Wyoming (44.5° N, 108.7° W: paleocoordinates 49.3° N, 91.5° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Willwood Formation, Wasatchian (55.8 - 50.3 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: fluvial-lacustrine; lithified siliciclastic sediments

Size classes: macrofossils, mesofossils

Reposited in the UMMP

Collection methods: surface (float), surface (in situ),

Primary reference: G. F. Gunnell and P. D. Gingerich. 1991. Systematics and Evolution of Late Paleocene and Early Eocene Oxyaenidae (Mammalia, Creodonta) in the Clarks Fork Basin, Wyoming. Contributions from the Museum of Paleontology, University of Michigan 28(7):141-180 [J. Alroy/J. Alroy/J. Marcot]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 15692: authorized by John Alroy, entered by John Alroy on 21.09.1998, edited by Leah Gannon and Will Clyde

Creative Commons license: CC BY (attribution)

Taxonomic list

• may be in Big Horn County, Wa-5
 Condylarthra - Hyopsodontidae
Hyopsodus simplex1 Loomis 1905 condylarth
Hyopsodus miticulus1 Cope 1874 condylarth
 Primates - Notharctidae
Cantius abditus1 Gingerich and Simons 1977 primate
 Primates - Microsyopidae
Microsyops angustidens1 Matthew 1915 primate
Microsyops cardiorestes1 Gunnell 1989 primate
 Primates - Paromomyidae
"Phenacolemur citatus" = Simpsonlemur citatus1
"Phenacolemur citatus" = Simpsonlemur citatus1 Matthew 1915 primate
 Primates - Omomyidae
Absarokius metoecus1 Bown and Rose 1987 tarsier
originally entered as "Absarokius motoecus"
 Rodentia - Ischyromyidae
Paramys taurus1 Korth 1984 rodent
Microparamys cheradius1 Ivy 1990 rodent
 Procreodi - Arctocyonidae
Chriacus gallinae1 Matthew and Granger 1915 condylarth
 Perissodactyla - Equidae
"Hyracotherium pernix" = Arenahippus pernix1
"Hyracotherium pernix" = Arenahippus pernix1 Marsh 1876 horse
 Perissodactyla -
Homogalax protapirinus1 Wortman 1896 odd-toed ungulate
Cardiolophus semihians1 Cope 1882 odd-toed ungulate
"Hyracotherium cristatum" = Systemodon tapirinus1 Cope 1875 odd-toed ungulate
 Theriamorpha - Phenacodontidae
Phenacodus vortmani1 Cope 1880 condylarth
 Artiodactyla - Diacodexeidae
Diacodexis metsiacus1, "Diacodexis robustus" = Bunophorus robustus1
Diacodexis metsiacus1 Cope 1882 even-toed ungulate
"Diacodexis robustus" = Bunophorus robustus1 Sinclair 1914 even-toed ungulate
 Theriamorpha - Epoicotheriidae
"Alocodontulum atopum" = Tubulodon atopum1
"Alocodontulum atopum" = Tubulodon atopum1 Rose et al. 1978 placental
 Theriamorpha - Metacheiromyidae
Palaeanodon sp.1 Matthew 1918 placental
 Creodonta - Oxyaenidae
Oxyaena intermedia Denison 1938 creodont
 Theriamorpha - Viverravidae
Didymictis protenus2 Cope 1874 placental
Viverravus acutus2 Matthew and Granger 1915 placental
 Theriamorpha -
Miacis petilus1 Gingerich 1983 placental
Vulpavus australis1 Matthew and Granger 1915 placental
Vassacyon promicrodon1 Wortman and Matthew 1899 placental
 Cimolesta - Coryphodontidae
Coryphodon lobatus1 Cope 1877 pantodont
Coryphodon armatus1 Cope 1872 pantodont
 Cimolesta - Esthonychidae
Esthonyx bisulcatus1 Cope 1874 tillodont
 Theriamorpha - Leptictidae
Palaeictops bicuspis1 Cope 1880 eutherian
 Loricata -
"Crocodilia indet." = Crocodylia1
"Crocodilia indet." = Crocodylia1 Owen 1842 crocodilian
 Lepisosteiformes - Lepisosteidae
Lepisosteus sp.1 Agassiz 1843 gar