PBDB Collection

La Barge: Wasatchian, Wyoming

List of taxa

Where & when

Geology

Taphonomy & methods

Metadata & references

Taxonomic list

Mammalia - Rodentia - Sciuravidae

	Knightomys senior (Gazin 1952)
Mammalia - Rodentia - Cylindrodontidae

	Dawsonomys woodi Gazin 1961
Mammalia - Rodentia - Ischyromyidae

	Paramys excavatus Loomis 1907
	assigned to P. excavatus excavatus by Wood 1962

	Paramys copei Loomis 1907
	includes "P. major"; described by Wood 1962 as P. copei copei
Mammalia - Primates - Microsyopidae

	Cynodontomys knightensis Gazin 1952
	= Microsyops knightensis Gazin 1952	Alroy 2002
Mammalia - Primates - Omomyidae

	Chlororhysis knightensis n. sp. Gazin 1958

	Absarokius noctivagus Matthew 1915
	= Absarokius abbotti Loomis 1906	Alroy 2002

	Anemorhysis sublettensis n. sp. (Gazin 1952)
	presumably includes tentative record of Gunnell 1995a from "Red Buttes... 12 miles north of Big Piney"

	Omomys sheai n. sp. Gazin 1962
	(2 measurements)
	= Loveina sheai Gazin 1962	Alroy 2002
Mammalia - Primates - Notharctidae

	Notharctus cf. venticolus Osborn 1902

	Notharctus limosus n. sp. Gazin 1952
	= Cantius nunienus Cope 1881	Alroy 2002
Mammalia - Phenacodontidae

	Meniscotherium robustum Thorpe 1934
	= Meniscotherium chamense Cope 1874	Alroy 2002
Mammalia - Perissodactyla

	Hyracotherium cf. craspedotum Cope 1880
	= Perissodactyla indet. Owen 1848	Alroy 2002
	- could be Systemodon tapirinus
Mammalia - Perissodactyla - Brontotheriidae

	Lambdotherium popoagicum Cope 1880
	see Bonillas 1936
Mammalia - Perissodactyla - Equidae

	Hyracotherium vasacciense (Cope 1872)
	= Minippus index Cope 1873	Froehlich 2002
	"LaBarge small"

	Protorohippus cf. venticolum (Cope 1881)	Hussain 1971
	"LaBarge medium"
Mammalia - Perissodactyla

	Heptodon ventorum (Cope 1880)
	= Heptodon calciculus Cope 1880	Alroy 2002

	Heptodon posticus (Cope 1882)	Radinsky 1963
Mammalia - Procreodi - Arctocyonidae

	Thryptacodon antiquus Matthew and Granger 1915
Mammalia - Homacodontidae

	Hexacodus pelodes Gazin 1952
Mammalia - Diacodexeidae

	Diacodexis secans (Cope 1881)
	= Diacodexis sp. Cope 1882	Alroy 2002
	could be D. kelleyi or something else

	Bunophorus cf. macropternus (Cope 1882)
Mammalia - Acreodi

	Sinopa viverrina (Cope 1874)
	= Wyolestes dioctes n. sp. Gingerich 1982	Gingerich 1982
	specimen proposed as neotype of Prototomus viverrinus by Van Valen 1966 DUPLICATE REF 1645 or 1646 or 1647 or 1648 or 1649
Mammalia - Creodonta - Hyaenodontidae

	Sinopa cf. vulpecula Matthew and Granger 1915
	= Gazinocyon cf. vulpeculus Matthew and Granger 1915	Alroy 2002

	Sinopa cf. strenua (Cope 1875)
	= Tritemnodon cf. strenuus Cope 1875	Alroy 2002
Mammalia - Creodonta

	Prolimnocyon elisabethae Gazin 1952
	= Prolimnocyon antiquus Matthew and Granger 1915	Alroy 2002
Mammalia - Creodonta - Oxyaenidae

	Ambloctonus major Denison 1938

	Oxyaena sp. Cope 1874
	= Oxyaena lupina Cope 1874	Gunnell 1998
Mammalia - Epoicotheriidae

	Pentapassalus pearcei Gazin 1952
	= Tubulodon pearcei Gazin 1952	Alroy 2002
Mammalia

	Uintacyon asodes Gazin 1952

	Vulpavus asius n. sp. Gazin 1952
	= Vulpavus australis Matthew and Granger 1915	Alroy 2002

	Miacis exiguus Matthew and Granger 1915
	= Miacis sp. Cope 1872	Alroy 2002

	Miacis cf. latidens Matthew and Granger 1915
Mammalia - Viverravidae

	Viverravus lutosus Gazin 1952

	Didymictis altidens Cope 1880
Mammalia - Condylarthra - Hyopsodontidae

	Hyopsodus wortmani Osborn 1902

	Hyopsodus cf. mentalis (Cope 1875)
Mammalia

	Stylinodontinae indet. Schlosser 1911
	confirmed by Schoch 1986
Mammalia - Coryphodontidae

	Coryphodon lobatus Cope 1877	Lucas 1998

	Coryphodon radians (Cope 1872)
Mammalia - Esthonychidae

	Esthonyx acutidens Cope 1881
Mammalia - Apatemyidae

	Apatemys hurzeleri n. sp. Gazin 1962
	= Apatemys bellulus Marsh 1872	Alroy 2002
Mammalia - Leptictidae

	Palaeictops pineyensis n. sp. (Gazin 1952)
	= Palaeictops bicuspis Cope 1880	Alroy 2002
Mammalia

	Peratherium edwardi Gazin 1952

	Peratherium chesteri Gazin 1952
	= Peradectes chesteri Gazin 1952	Alroy 2002
Reptilia - Anguidae

	Arpadosaurus gazinorum n. gen., n. sp. Meszoely 1970	Meszoely 1970
see common names

Geography

Country:	United States	State/province:	Wyoming	County:	Sublette
Coordinates:	42.7° North, 110.1° West (view map)
Paleocoordinates:	50.9° North, 83.0° West (Wright 2013)
Basis of coordinate:	based on political unit

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:	Wasatch	Member:	LaBarge
Local section:	GRBsn	Local bed:	1
Local order:	bottom to top
Stratigraphy comments: said to be from the "Knight Mbr." (= LaBarge)

Lithology and environment

Primary lithology:	mudstone
Environment:	terrestrial indet.

Taphonomy

Modes of preservation:	body
Size of fossils:	macrofossils,mesofossils

Collection methods and comments

Collection size:	580 specimens
Reason for describing collection:	general faunal/floral analysis
Taxonomic list comments:said to underlie the Tipton Shale (=Fontenelle), therefore clearly within the La Barge Mbr. sensu Krishtalka et al. 1987 apparently includes material referred to by Szalay 1969a as "Muddy Creek locality, 12 miles north of Big Piney... Sublette Co." Lostcabinian

Metadata

Also known as:	12 mi north of Big Piney; Tulsa
Database number:	15662
Authorizer:	J. Alroy, P. Holroyd, J. Marcot	Enterer:	J. Alroy, J. Marcot, P. Holroyd
Modifier:	P. Holroyd	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:

1616.

C. L. Gazin. 1962. A Further Study Of The Lower Eocene Mammalian Faunas Of Southwestern Wyoming. Smithsonian Miscellaneous Collections 144(1):1-98 [J. Alroy/J. Alroy/J. Marcot]

Secondary references:

6294		J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari]
53105		D. J. Froehlich. 2002. Quo vadis Eohippus? The systematics and taxonomy of the early Eocene equids (Perissodactyla). Zoological Journal of the Linnean Society 134:141-256 [M. Carrano/M. Carrano/M. Carrano]
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]
1735		G. F. Gunnell. 1998. Creodonta. In C. M. Janis, K. M. Scott, and L. L. Jacobs (eds.), Evolution of Tertiary Mammals of North America, Volume 1: Terrestrial Carnivores, Ungulates, and Ungulate like Mammals [J. Alroy/J. Alroy/J. Orcutt]
6184	5% 38720	S.T. Hussain. 1971. Revision of Hipparion (Equidae, Mammalia) from the Siwalik Hills of Pakistan and India. Akademie der Wissenschaften, Mathematich-Naturwissen Schaftliche Klasse Abhandlungen 147:68 [W. Clyde/J. Finarelli/W. Clyde]
6280		S. G. Lucas. 1998. Fossil mammals and the Paleocene/Eocene series boundary in Europe, North America, and Asia. In M.-P. Aubry, S. G. Lucas and W. A. Berggren (eds.), Late Paleocene–Early Eocene Biotic and Climatic Events in the Marine and Terrestrial Records 451-500 [J. Alroy/J. Alroy/M. Uhen]
14550		C. Meszoely. 1970. North American fossil anguid lizards. Bulletin of the Museum of Comparative Zoology 139(2):87-149 [J. Head/J. Head/J. Head]
2818		L. B. Radinsky. 1963. Origin and Early Evolution of North American Tapiroidea. Peabody Museum of Natural History Bulletin 17:1-118 [J. Alroy/J. Alroy/J. Marcot]