PBDB Collection

Elk Creek (440 m): Wasatchian, Wyoming

List of taxa

Where & when

Geology

Taphonomy & methods

Metadata & references

Taxonomic list

Mammalia - Primates - Notharctidae

	Pelycodus sp. Cope 1875
	= Cantius sp. Simons 1962	Alroy 2002
	"mckennai/trigonodus"; C. trigonodus is listed at USGS D-1206, "438 meter level" by Gebo 1987

	Pelycodus abditus Gingerich and Simons 1977
	= Cantius abditus Gingerich and Simons 1977	Alroy 2002
Mammalia - Primates - Omomyidae

	Steinius vespertinus (Matthew 1915)	Bown and Rose 1987
	USGS D-1398

	Absarokius metoecus Bown and Rose 1987	Bown and Rose 1987
	USGS D-1428
Mammalia - Acreodi - Mesonychidae

	Dissacus sp. Cope 1881
	"1"
Mammalia - Perissodactyla - Equidae

	Hyracotherium aemulor Gingerich 1991
	"H. sp. 2"

	Hyracotherium grangeri Gingerich 1989
	"H. sp. 1"
Mammalia - Phenacodontidae

	Phenacodus vortmani (Cope 1880)
Mammalia - Diacodexeidae

	Diacodexis metsiacus (Cope 1882)
	= Diacodexis sp. Cope 1882	Alroy 2002

	Bunophorus etsagicus (Cope 1882)
	= Bunophorus sp. Sinclair 1914	Alroy 2002
Mammalia

	Vulpavus australis Matthew and Granger 1915
Mammalia - Viverravidae

	Didymictis sp. Cope 1875
	"curtidens/lysitensis"
Mammalia - Creodonta - Oxyaenidae

	Oxyaena sp. Cope 1874
	"intermedia/forcipata"
Mammalia - Condylarthra - Hyopsodontidae

	Hyopsodus sp. Leidy 1870
	"latidens/miticulus"

	Hyopsodus sp. Leidy 1870
	"loomisi/minor"
Mammalia - Esthonychidae

	Esthonyx bisulcatus Cope 1874
see common names

Geography

Country:	United States	State/province:	Wyoming	County:	Big Horn
Coordinates:	44.5° North, 108.0° West (view map)
Paleocoordinates:	52.2° North, 79.9° West (Wright 2013)
Basis of coordinate:	based on political unit
Geographic resolution:	small collection

Time

Period:	Paleogene	Epoch:	Eocene
Stage:	Ypresian	10 m.y. bin:	Cenozoic 2
*Period:	Tertiary
Key time interval:	Wasatchian
Age range of interval:	54.9 - 50.5 m.y. ago
* legacy (obsolete) database fields

Stratigraphy

Formation:	Willwood
Local section:	ElkCr	Local bed:	440 m
Local order:	bottom to top

Lithology and environment

Environment:

terrestrial indet.

Taphonomy

Modes of preservation:

body

Collection methods and comments

Reason for describing collection:	biostratigraphic analysis
Taxonomic list comments:USGS D-1398 is from Washakie County

Metadata

Also known as:	YPM 220, 221, 230a, 230b, 234, 235, USGS D-1398 (438 m), 1428 (440 m)
Database number:	15541
Authorizer:	J. Alroy	Enterer:	J. Alroy
Research group:	vertebrate
Created:	1993-02-18 00:00:00	Last modified:	2025-02-22 15:12:02
Access level:	the public	Released:	1993-02-18 00:00:00
Creative Commons license:	CC0

Reference information

Primary reference:

3021.

D. M. Schankler. 1980. Faunal Zonation of the Willwood Formation in the Central Bighorn Basin, Wyoming. University of Michigan Papers on Paleontology 24:99-114 [J. Alroy/J. Alroy/M. Uhen]

Secondary references:

6294		J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari]
1123		T. M. Bown and K. D. Rose. 1987. Patterns of Dental Evolution in Early Eocene Anaptomorphine Primates (Omomyidae) from the Bighorn Basin, Wyoming. Paleontological Society Memoir 23:1-162 [J. Alroy/J. Alroy/J. Ju]