PBDB Collection

Elk Creek (530 m): Wasatchian, Wyoming

List of taxa

Where & when

Geology

Taphonomy & methods

Metadata & references

Taxonomic list

Mammalia - Condylarthra - Hyopsodontidae

	Hyopsodus sp. Leidy 1870
	"latidens/miticulus"

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

	Phenacodus vortmani (Cope 1880)
Mammalia - Perissodactyla

	Perissodactyla indet. (Owen 1848)
	"1"

	Heptodon calciculus (Cope 1880)

	Cardiolophus semihians (Cope 1882)	Gingerich 1991
Mammalia - Perissodactyla - Equidae

	Hyracotherium aemulor Gingerich 1991
	recombined as Arenahippus aemulor
	"H. sp. 2"

	Hyracotherium grangeri Gingerich 1989
	recombined as Sifrhippus grangeri
	"H. sp. 1"
Mammalia - Diacodexeidae

	Bunophorus etsagicus (Cope 1882)
	= Bunophorus grangeri Sinclair 1914	Stucky and Krishtalka 1990

	Diacodexis metsiacus (Cope 1882)
	= Diacodexis sp. Cope 1882	Alroy 2002
Mammalia - Homacodontidae

	cf. Hexacodus sp. Gazin 1952
Mammalia - Procreodi - Arctocyonidae

	Thryptacodon loisi Kelley and Wood 1954
	= Thryptacodon antiquus Matthew and Granger 1915	Alroy 2002

	Anacodon ursidens Cope 1882
Mammalia - Creodonta

	Prolimnocyon atavus Matthew and Granger 1915
	confirmed by Gingerich and Deutsch 1989
Mammalia - Creodonta - Hyaenodontidae

	Prototomus secundarius Cope 1875	Gingerich and Deutsch 1989
	"P. sp. 1"

	Tritemnodon strenua
	= Tritemnodon strenuus Cope 1875	Alroy 2002
Mammalia - Viverravidae

	Didymictis sp. Cope 1875
	"curtidens/lysitensis"

	Viverravus sp. Marsh 1872
	"V. acutus/gracilis"
Mammalia

	Vassacyon promicrodon (Wortman and Matthew 1899)

	Miacis exiguus Matthew and Granger 1915
	= Miacis petilus Gingerich 1983	Gingerich 1983

	Vulpavus australis Matthew and Granger 1915

	Vulpavus canavus (Cope 1881)

	Uintacyon asodes Gazin 1952
Mammalia - Metacheiromyidae

	Palaeanodon ignavus Matthew 1918
Mammalia - Rodentia - Ischyromyidae

	Paramys cf. excavatus Loomis 1907

	Paramys cf. copei Loomis 1907

	Leptotomus loomisi Wood 1962
	= cf. Mytonomys coloradensis Wood 1962	Alroy 2002
Mammalia - Rodentia - Sciuravidae

	cf. Knightomys depressus (Loomis 1907)
Mammalia - Primates - Microsyopidae

	Microsyops sp. Leidy 1872
	= Microsyopidae indet. Osborn and Wortman 1892	Alroy 2002
Mammalia - Primates - Paromomyidae

	Phenacolemurinae indet. Simpson 1955
	"Phenacolemur sp. 1" and "P. sp. 2"
Mammalia - Primates - Notharctidae

	Pelycodus abditus Gingerich and Simons 1977
	= Cantius abditus Gingerich and Simons 1977	Alroy 2002
	at USGS D-1314 "470 meter level" according to Gebo 1987
Mammalia - Primates - Omomyidae

	Tetonoides sp. Gazin 1962
	= Omomyidae indet. Gazin 1958	Alroy 2002
	form 1"

	Omomyidae indet. Gazin 1958
	"1"

	Tetonius homunculus (Cope 1882)
	= Tetonius sp. Matthew 1915	Alroy 2002

	Absarokius abbotti (Loomis 1906)	Bown and Rose 1987
	Y-227, 228, USGS D-1157, 1230 level questionable: USGS D-1495, 1698, 1699

	Absarokius metoecus Bown and Rose 1987	Bown and Rose 1987
	USGS D-1230 level questionable: USGS D-1495, 1676, 1699
Mammalia - Leptictidae

	Prodiacodon tauricinerei (Jepsen 1930)

	Palaeictops bicuspis (Cope 1880)

	Didelphodus absarokae (Cope 1881)
Mammalia - Coryphodontidae

	Coryphodon sp. (Owen 1845)
	original and current combination Lophiodon (Coryphodon)
	"2"
Mammalia - Apatemyidae

	Labidolemur kayi Simpson 1929	Gingerich 1982
	"Apatemys chardini/bellulus" DUPLICATE REF 1645 or 1646 or 1647 or 1648 or 1649
Mammalia - Esthonychidae

	Esthonyx bisulcatus Cope 1874
Mammalia - Dinocerata - Uintatheriidae

	Uintatheriidae indet. Flower 1876
	"1"
see common names

Geography

Country:	United States	State/province:	Wyoming	County:	Big Horn
Coordinates:	44.5° North, 108.0° West (view map)
Paleocoordinates:	49.2° North, 90.8° West
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:	54.90000 - 50.50000 m.y. ago
* legacy (obsolete) database fields

Stratigraphy

Formation:	Willwood
Local section:	ElkCr	Local bed:	530 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 localities are in Washakie County YPM 45, 45N, 227, and 227N were placed at this level by Schankler, but 45 was placed at 470 m, and 227 at 457 m, by Bown and Rose (1987); see next list for YPM 45 other lists possibly at this level, with Bown levels: USGS D-1698, 1784 (455 m), 1699 (463 m), 1495 (464 m), 1676 (464 m) Steinius vespertinus is at USGS D-1699: B & R 87

Metadata

Also known as:	YPM 126, 227, 227N, 228, 253, USGS D-1157, 1230
Database number:	15548
Authorizer:	J. Alroy	Enterer:	J. Alroy
Research group:	vertebrate
Created:	1993-02-18 00:00:00	Last modified:	2002-06-03 03:27:40
Access level:	the public	Released:	1993-02-18 00:00:00
Creative Commons license:	CC BY

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]
1645		P. D. Gingerich. 1982. Time resolution in mammalian evolution: sampling, lineages and faunal turnover. Proceedings of the Third North American Paleontological Convention 1:205-210 [J. Alroy/J. Alroy/M. Uhen]
1650		P. D. Gingerich. 1983. Paleocene-Eocene faunal zones and a preliminary analysis of Laramide structural deformation in the Clarks Fork Basin, Wyoming. Wyoming Geological Association Guidebook 34:185-195 [J. Alroy/J. Alroy/M. Uhen]
1660		P. D. Gingerich. 1991. Systematics and Evolution of Early Eocene Perissodactyla (Mammalia) in the Clarks Fork Basin, Wyoming. Contributions from the Museum of Paleontology, University of Michigan 28(8):181-213 [J. Alroy/J. Alroy/P. Mannion]
1666		P. D. Gingerich and H. A. Deutsch. 1989. Systematics and Evolution of Early Eocene Hyaenodontidae (Mammalia, Creodonta) in the Clarks Fork Basin, Wyoming. Contributions from the Museum of Paleontology, University of Michigan 27(13):327-391 [J. Alroy/J. Alroy/J. Marcot]
3335		R. K. Stucky and L. Krishtalka. 1990. Revision of the Wind River Faunas, Early Eocene of Central Wyoming. Part 10. Bunophorus (Mammalia, Artiodactyla). Annals of Carnegie Museum 59(2):149-171 [J. Alroy/J. Alroy/J. Marcot]