PBDB Collection

Purple Hills (Eocene of the United States)

Also known as USGS Loc. D-1177, 1315, 1316, UMRB1, RB2

Where: Big Horn County, Wyoming (44.5° N, 108.0° W: paleocoordinates 49.2° N, 90.8° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Willwood Formation, Wasatchian (55.8 - 50.3 Ma)

Environment/lithology: terrestrial

Reposited in the USGS

Primary reference: T. M. Bown, K. D. Rose, E. L. Simons and S. L. Wing. 1994. Distribution and stratigraphic correlation of upper Paleocene and lower Eocene fossil mammal and plant localities of the Fort Union, Willwood, and Tatman formations, southern Bighorn Basin, Wyoming. United States Geological Survey Professional Paper 1540:1-103 [J. Alroy/J. Alroy/M. Uhen]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 15578: authorized by John Alroy, entered by John Alroy on 18.02.1993

Creative Commons license: CC BY (attribution)

Taxonomic list

• placed in Bown section by Bown et al.

Show authors, comments, and common names

Mammalia
Cimolesta - Coryphodontidae	Coryphodon sp. Coryphodon sp. Owen 1845 pantodont
Cimolesta - Esthonychidae	Esthonyx sp. Esthonyx sp. Cope 1874 tillodont presumably sensu stricto
Condylarthra - Hyopsodontidae	Hyopsodus sp., Hyopsodus cf. minor Hyopsodus sp. Leidy 1870 condylarth Hyopsodus cf. minor Loomis 1905 condylarth
Primates - Paromomyidae	Phenacolemurinae indet. Phenacolemurinae indet. Simpson 1955 primate
Primates - Omomyidae	Absarokius metoecus Absarokius metoecus Bown and Rose 1987 tarsier
Primates - Microsyopidae	Microsyops latidens Microsyops latidens Cope 1882 primate
Primates - Notharctidae	Cantius abditus Cantius abditus Gingerich and Simons 1977 primate may include specimen from USGS D-2003 at the 479 m level of Rose et al. 1999
Creodonta - Oxyaenidae	Oxyaenidae indet. Oxyaenidae indet. Cope 1877 creodont
Creodonta - Hyaenodontidae	cf. Prototomus sp., Tritemnodon cf. strenuus cf. Prototomus sp. Cope 1874 creodont Tritemnodon cf. strenuus Cope 1875 creodont
Ferae -	Vulpavus canavus, Vulpavus australis Vulpavus canavus Cope 1881 placental Vulpavus australis Matthew and Granger 1915 placental
Carnivora - Miacidae	Miacidae indet. Miacidae indet. Cope 1880 carnivoran
Ferae -	Miacis exiguus, Vassacyon cf. promicrodon Miacis exiguus Matthew and Granger 1915 placental Vassacyon cf. promicrodon Wortman and Matthew 1899 placental
Ferae - Viverravidae	Viverravus acutus, Didymictis sp. Viverravus acutus Matthew and Granger 1915 placental Didymictis sp. Cope 1875 placental
Tribosphenida - Phenacodontidae	Phenacodus vortmani, "Phenacodus brachypternus" = Copecion brachypternus Phenacodus vortmani Cope 1880 condylarth "Phenacodus brachypternus" = Copecion brachypternus Cope 1882 condylarth
Perissodactyla - Helaletidae	Helaletidae indet. Helaletidae indet. Osborn 1892 odd-toed ungulate new helaletid of Bown
Perissodactyla - Equidae	Xenicohippus grangeri Xenicohippus grangeri Bown and Kihm 1981 horse
Perissodactyla - Palaeotheriidae	Hyracotherium sp. Hyracotherium sp. Owen 1841 odd-toed ungulate
Procreodi - Arctocyonidae	Anacodon ursidens, Chriacus sp. Anacodon ursidens Cope 1882 condylarth Chriacus sp. Cope 1883 condylarth said to be new
Artiodactyla - Diacodexeidae	Diacodexis metsiacus, Bunophorus sp. Diacodexis metsiacus Cope 1882 even-toed ungulate Bunophorus sp. Sinclair 1914 even-toed ungulate
Tribosphenida - Pantolestoidae	Palaeosinopa veterrima Palaeosinopa veterrima Matthew 1901 placental
Leptictida - Leptictidae	Didelphodus absarokae, Palaeictops bicuspis Didelphodus absarokae Cope 1881 eutherian Palaeictops bicuspis Cope 1880 eutherian