MP-6 (Eocene of the United States)

Where: Park County, Wyoming (44.6° N, 108.9° W: paleocoordinates 49.2° N, 92.2° 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: X. Zhou and P. D. Gingerich. 1991. New Species of Hapalodectes (Mammalia, Mesonychia) from the Early Wasatchian, Early Eocene of Northwestern Wyoming. Contributions from the Museum of Paleontology, University of Michigan 28(9):215-220 [J. Alroy/J. Alroy/P. Mannion]more details

PaleoDB collection 15680: authorized by John Alroy, entered by John Alroy on 27.09.1993, edited by Leah Gannon and Will Clyde

Creative Commons license: CC BY (attribution)

Taxonomic list

• may be in Big Horn County

•Wa-6

Reptilia
 Squamata -
 Testudines -
Testudines indet.1 Batsch 1788 turtle
Mammalia
 Theriamorpha - Leptictidae
Palaeictops bicuspis1 Cope 1880 eutherian
 Cimolesta - Coryphodontidae
Coryphodon lobatus1 Cope 1877 pantodont
Coryphodon eocaenus1 Owen 1846 pantodont
 Cimolesta - Esthonychidae
Esthonyx bisulcatus1 Cope 1874 tillodont
 Insectivora -
Insectivora indet.1 Bowdich 1821 insectivoran
 Condylarthra - Hyopsodontidae
Hyopsodus minor1 Loomis 1905 condylarth
Hyopsodus lysitensis1 Gingerich 1974 condylarth
Hyopsodus powellianus1 Cope 1884 condylarth
 Acreodi - Hapalodectidae
Hapalodectes leptognathus Osborn and Wortman 1892 condylarth
 Theriamorpha - Metacheiromyidae
Palaeanodon sp.1 Matthew 1918 placental
 Creodonta - Hyaenodontidae
Prototomus secundarius2 Cope 1875 creodont
 Creodonta - Oxyaenidae
Oxyaena forcipata3 Cope 1874 creodont
 Theriamorpha -
Miacis exiguus1 Matthew and Granger 1915 placental
Miacis petilus1 Gingerich 1983 placental
Vulpavus canavus1 Cope 1881 placental
Vulpavus australis1 Matthew and Granger 1915 placental
 Theriamorpha - Viverravidae
Didymictis protenus4 Cope 1874 placental
 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
Heptodon calciculus1 Cope 1880 odd-toed ungulate
"Hyracotherium cristatum" = Systemodon tapirinus1 Cope 1875 odd-toed ungulate
 Theriamorpha - Phenacodontidae
Phenacodus vortmani1 Cope 1880 condylarth
 Artiodactyla - Diacodexeidae
Bunophorus "large sp."1 Sinclair 1914 even-toed ungulate
Diacodexis metsiacus1 Cope 1882 even-toed ungulate
 Procreodi - Arctocyonidae
Chriacus gallinae1 Matthew and Granger 1915 condylarth
 Placentalia -
Rodentia indet.1 Bowdich 1821 rodent
 Rodentia - Ischyromyidae
Paramys "v. large sp."1 Leidy 1871 rodent
Paramys taurus1 Korth 1984 rodent
Paramys copei1 Loomis 1907 rodent
 Primates - Notharctidae
Cantius abditus1, "Copelemur feretutus" = Cantius frugivorus1
Cantius abditus1 Gingerich and Simons 1977 primate
"Copelemur feretutus" = Cantius frugivorus1 Cope 1875 primate
 Primates - Omomyidae
Absarokius abbotti1 Loomis 1906 tarsier
 Primates - Microsyopidae
Microsyops latidens1 Cope 1882 primate
Actinopteri
 Lepisosteiformes - Lepisosteidae
Lepisosteus sp.1 Agassiz 1843 gar