Where: Park County, Wyoming (44.6° N, 108.7° W: paleocoordinates 49.4° 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 15702: 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
Reptilia | |
Testudines indet. Batsch 1788 turtle | |
Allognathosuchus sp. Mook 1921 crocodilian | |
Mammalia | |
Haplomylus scottianus Gingerich 1994 elephant shrew | |
Hyopsodus latidens Denison 1937 condylarth | |
Paramys ? copei Loomis 1907 rodent
Acritoparamys atwateri Loomis 1907 rodent | |
Plagiomene multicuspis Matthew 1918 colugo | |
Cantius trigonodus Matthew 1915 primate | |
Microsyops angustidens Matthew 1915 primate | |
| |
Pachyaena gracilis Matthew and Granger 1915 condylarth | |
Oxyaena forcipata Cope 1874 creodont | |
Arfia opisthotoma Matthew 1901 creodont | |
Miacis exiguus Matthew and Granger 1915 placental
Miacis ? petilus Gingerich 1983 placental
? Vulpavus australis Matthew and Granger 1915 placental | |
Didymictis protenus Cope 1874 placental
Viverravus acutus Matthew and Granger 1915 placental | |
Palaeanodon nievelti Gingerich 1989 placental | |
Diacodexis metsiacus, "Diacodexis robustus" = Bunophorus robustus
Diacodexis metsiacus Cope 1882 even-toed ungulate
"Diacodexis robustus" = Bunophorus robustus Sinclair 1914 even-toed ungulate | |
Thryptacodon antiquus Matthew and Granger 1915 condylarth | |
Phenacodus vortmani Cope 1880 condylarth
Phenacodus trilobatus Cope 1881 condylarth
Phenacodus intermedius Granger 1915 condylarth | |
Homogalax protapirinus, "Hyracotherium cristatum" = Systemodon tapirinus
Homogalax protapirinus Wortman 1896 odd-toed ungulate
"Hyracotherium cristatum" = Systemodon tapirinus Cope 1875 odd-toed ungulate | |
"Hyracotherium pernix" = Arenahippus pernix
"Hyracotherium pernix" = Arenahippus pernix Marsh 1876 horse | |
Palaeosinopa veterrima Matthew 1901 placental
Palaeosinopa ? veterrima Matthew 1901 placental | |
Coryphodon radians Cope 1872 pantodont | |
Esthonyx bisulcatus Cope 1874 tillodont | |
Palaeictops bicuspis Cope 1880 eutherian |