MP-62 (Eocene of the United States)

Where: Park County, Wyoming (44.4° N, 108.6° W: paleocoordinates 49.1° N, 92.0° W)

• coordinate estimated from map

• small collection-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

Size classes: macrofossils, mesofossils

Reposited in the UMMP

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

Primary reference: P. D. Polly. 1997. Ancestry and Species Definition in Paleontology: A Stratocladistic Analysis of Paleocene-Eocene Viverravidae (Mammalia, Carnivora) from Wyoming. Contributions from the Museum of Paleontology, University of Michigan 30(1):1-53 [J. Alroy/J. Alroy/M. Uhen]more details

PaleoDB collection 15687: 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
Reptilia
 Testudines -
Testudines indet.2 Batsch 1788 turtle
 Crocodylia - Alligatoridae
Allognathosuchus sp.2 Mook 1921 crocodilian
 Squamata - Anguidae
Melanosaurus sp.2 Gilmore 1928 lizard
 Squamata -
Mammalia
 Cimolesta - Coryphodontidae
Coryphodon lobatus2 Cope 1877 pantodont
Coryphodon armatus2 Cope 1872 pantodont
 Cimolesta - Esthonychidae
Esthonyx bisulcatus2 Cope 1874 tillodont
 Cimolesta - Pantolestidae
Palaeosinopa veterrima2 Matthew 1901 eutherian
 Leptictida - Leptictidae
Palaeictops bicuspis2 Cope 1880 eutherian
 Primates - Microsyopidae
Microsyops latidens2 Cope 1882 primate
 Primates - Omomyidae
Absarokius metoecus2 Bown and Rose 1987 tarsier
originally entered as "Absarokius motoecus"
 Primates - Notharctidae
Cantius abditus2 Gingerich and Simons 1977 primate
 Primates - Paromomyidae
"Phenacolemur citatus" = Simpsonlemur citatus2
"Phenacolemur citatus" = Simpsonlemur citatus2 Matthew 1915 primate
 Condylarthra - Hyopsodontidae
Hyopsodus simplex2 Loomis 1905 condylarth
 Tribosphenida - Phenacodontidae
Copecion brachypternus2 Cope 1882 condylarth
Phenacodus intermedius2 Granger 1915 condylarth
Phenacodus vortmani2 Cope 1880 condylarth
 Perissodactyla -
Homogalax protapirinus2 Wortman 1896 odd-toed ungulate
"Systemodon cristatus" = Systemodon tapirinus1 Cope 1875 odd-toed ungulate
Cardiolophus semihians2 Cope 1882 odd-toed ungulate
 Perissodactyla - Equidae
"Hyracotherium pernix" = Arenahippus pernix2
"Hyracotherium pernix" = Arenahippus pernix2 Marsh 1876 horse
 Creodonta - Oxyaenidae
Oxyaena forcipata2 Cope 1874 creodont
 Ferae - Viverravidae
Didymictis protenus Cope 1874 placental
Viverravus acutus Matthew and Granger 1915 placental
 Carnivora - Miacidae
Miacis petilus2 Gingerich 1983 carnivoran
Miacis exiguus2 Matthew and Granger 1915 carnivoran
 Macroscelidea - Apheliscidae
Apheliscus insidiosus2 Cope 1874 elephant shrew
 Tribosphenida - Arctocyonidae
Anacodon ursidens2 Cope 1882 condylarth
 Hyaenodonta - Hyaenodontidae
Prototomus robustus2 Matthew and Granger 1915 eutherian
Tritemnodon strenuus2 Cope 1875 eutherian
 Hyaenodonta -
Didelphodus absarokae2 Cope 1881 eutherian
 Artiodactyla - Diacodexeidae
Diacodexis metsiacus2 Cope 1882 even-toed ungulate