MP-62 (Eocene of the United States)

Where: Park County, Wyoming (44.4° N, 108.6° W: paleocoordinates 49.2° 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: 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

Purpose of describing collection: taxonomic analysis

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
 Condylarthra - Hyopsodontidae
Hyopsodus simplex Loomis 1905 condylarth
 Macroscelidea - Apheliscidae
Apheliscus insidiosus Cope 1874 elephant shrew
 Primates - Notharctidae
Cantius abditus Gingerich and Simons 1977 primate
 Primates - Microsyopidae
Microsyops latidens Cope 1882 primate
 Primates - Paromomyidae
"Phenacolemur citatus" = Simpsonlemur citatus
"Phenacolemur citatus" = Simpsonlemur citatus Matthew 1915 primate
 Primates - Omomyidae
Absarokius metoecus Bown and Rose 1987 tarsier
originally entered as "Absarokius motoecus"
 Procreodi - Arctocyonidae
Anacodon ursidens Cope 1882 condylarth
 Perissodactyla - Equidae
"Hyracotherium pernix" = Arenahippus pernix
"Hyracotherium pernix" = Arenahippus pernix Marsh 1876 horse
 Perissodactyla -
Homogalax protapirinus Wortman 1896 odd-toed ungulate
Cardiolophus semihians Cope 1882 odd-toed ungulate
 Theriamorpha - Phenacodontidae
Phenacodus intermedius Granger 1915 condylarth
Phenacodus vortmani Cope 1880 condylarth
Copecion brachypternus Cope 1882 condylarth
 Artiodactyla - Diacodexeidae
Diacodexis metsiacus Cope 1882 even-toed ungulate
 Creodonta - Oxyaenidae
Oxyaena forcipata Cope 1874 creodont
 Creodonta -
Didelphodus absarokae Cope 1881 creodont
 Creodonta - Hyaenodontidae
Tritemnodon strenuus Cope 1875 creodont
Prototomus robustus Matthew and Granger 1915 creodont
 Theriamorpha - Viverravidae
Didymictis protenus Cope 1874 placental
Viverravus acutus Matthew and Granger 1915 placental
 Theriamorpha -
Miacis exiguus Matthew and Granger 1915 placental
Miacis petilus Gingerich 1983 placental
 Cimolesta - Coryphodontidae
Coryphodon lobatus Cope 1877 pantodont
Coryphodon armatus Cope 1872 pantodont
 Cimolesta - Pantolestidae
Palaeosinopa veterrima Matthew 1901 eutherian
 Cimolesta - Esthonychidae
Esthonyx bisulcatus Cope 1874 tillodont
 Theriamorpha - Leptictidae
Palaeictops bicuspis Cope 1880 eutherian
 Squamata -
 Squamata - Anguidae
Melanosaurus sp. Gilmore 1928 squamates
 Crocodylia - Alligatoridae
Allognathosuchus sp. Mook 1921 crocodilian
 Testudines -
Testudines indet. Batsch 1788 turtle