MP-145 (Eocene of the United States)

Where: Park County, Wyoming (44.6° N, 108.6° W: paleocoordinates 49.4° N, 91.4° 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 15697: 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-4
Mammalia
 Rodentia - Ischyromyidae
Paramys copei1 Loomis 1907 rodent
Paramys taurus1 Korth 1984 rodent
Acritoparamys atwateri1 Loomis 1907 rodent
 Primates - Notharctidae
Cantius trigonodus1 Matthew 1915 primate
 Primates - Omomyidae
Tetonius matthewi1 Bown and Rose 1987 tarsier
originally entered as "Tetonius mathewi"
Teilhardina crassidens1 Bown and Rose 1987 tarsier
 Dermoptera -
Plagiomene multicuspis1 Matthew 1918 colugo
 Perissodactyla -
"Hyracotherium cristatum" = Systemodon tapirinus1, Homogalax protapirinus1
"Hyracotherium cristatum" = Systemodon tapirinus1 Cope 1875 odd-toed ungulate
Homogalax protapirinus1 Wortman 1896 odd-toed ungulate
 Perissodactyla - Equidae
"Hyracotherium pernix" = Arenahippus pernix1
"Hyracotherium pernix" = Arenahippus pernix1 Marsh 1876 horse
 Theriamorpha - Phenacodontidae
Ectocion osbornianus1 Cope 1882 condylarth
Phenacodus trilobatus1 Cope 1881 condylarth
Phenacodus intermedius1 Granger 1915 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
 Creodonta - Oxyaenidae
Oxyaena forcipata1 Cope 1874 creodont
 Creodonta - Hyaenodontidae
Prototomus robustus1 Matthew and Granger 1915 creodont
 Theriamorpha - Viverravidae
Didymictis protenus Cope 1874 placental
Viverravus acutus Matthew and Granger 1915 placental
 Acreodi - Mesonychidae
Pachyaena gracilis1 Matthew and Granger 1915 condylarth
 Condylarthra - Hyopsodontidae
Hyopsodus latidens1 Denison 1937 condylarth
 Macroscelidea - Apheliscidae
Apheliscus insidiosus1 Cope 1874 elephant shrew
Haplomylus scottianus2 Gingerich 1994 elephant shrew
 Cimolesta - Pantolestidae
Palaeosinopa lutreola1 Matthew 1918 eutherian
 Cimolesta - Coryphodontidae
Coryphodon radians1 Cope 1872 pantodont
 Cimolesta - Esthonychidae
Esthonyx bisulcatus1 Cope 1874 tillodont
Reptilia
 Testudines -
Testudines indet.1 Batsch 1788 turtle
 Loricata -
"Crocodilia indet." = Crocodylia1
"Crocodilia indet." = Crocodylia1 Owen 1842 crocodilian