PBDB Collection

List of taxa

Where & when

Geology

Taphonomy & methods

Metadata & references

Taxonomic list

Mammalia - Multituberculata - Ptilodontidae

	Prochetodon cf. cavus Jepsen 1940
	= Prochetodon taxus Krause 1987	Alroy 2002
	replaces ID of Krause 1980
Mammalia - Multituberculata - Neoplagiaulacidae

	Parectypodus laytoni (Jepsen 1940)	Krause 1980

	Ectypodus powelli Jepsen 1940	Krause 1980
Mammalia - Multituberculata

	Neoliotomus conventus Jepsen 1930	Krause 1980
Mammalia - Multituberculata - Microcosmodontidae

	Microcosmodon rosei Krause 1980	Krause 1980
Mammalia

	? Ectoganus sp. Cope 1874	Clyde 1997
Mammalia - Dermoptera

	Worlandia inusitata Bown and Rose 1979	Clyde 1997

	Plagiomene accola Rose 1981	Clyde 1997
Mammalia - Primates - Plesiadapidae

	Chiromyoides major Gingerich 1975	Clyde 1997

	Plesiadapis cookei Jepsen 1930	Clyde 1997

	Plesiadapis dubius (Matthew 1915)	Clyde 1997
Mammalia - Primates - Carpolestidae

	Carpolestes nigridens Simpson 1928	Clyde 1997

	Carpolestes simpsoni Bloch and Gingerich 1998	Bloch and Gingerich 1998
Mammalia - Primates - Microsyopidae

	Arctodontomys simplicidens (Rose 1981)	Gunnell 1985
Mammalia - Primates - Paromomyidae

	Phenacolemur pagei Jepsen 1930	Clyde 1997

	Phenacolemur simonsi Bown and Rose 1976	Clyde 1997

	Ignacius graybullianus Bown and Rose 1976	Clyde 1997
Mammalia - Procreodi - Arctocyonidae

	? Chriacus sp. Cope 1883	Clyde 1997

	Tricentes sp. Cope 1884	Clyde 1997
Mammalia - Phenacodontidae

	Ectocion osbornianus (Cope 1882)	Clyde 1997
Mammalia - Viverravidae

	Viverravus sp. Marsh 1872	Clyde 1997
Mammalia - Pantolestidae

	Palaeosinopa sp. Matthew 1901	Clyde 1997
Mammalia

	Leipsanolestes siegfriedti Simpson 1928	Clyde 1997
Mammalia - Macroscelidea

	cf. Diacodon minutus Jepsen 1930	Clyde 1997
unclassified

	Dithelysia amorensis	Clyde 1997
Mammalia - Macroscelidea - Apheliscidae

	Apheliscus sp. Cope 1875	Clyde 1997
Mammalia - Proteutheria - Palaeoryctidae

	Palaeoryctes sp. Matthew 1913	Clyde 1997
Mammalia

	Peradectes chesteri (Gazin 1952)	Clyde 1997
Reptilia - Anguidae

	Xestops sp. Cope 1873	Clyde 1997

	Melanosaurus maximus Gilmore 1928	Clyde 1997

	Melanosaurus maximus Gilmore 1928	Bartels 1983

	cf. Odaxosaurus piger (Gilmore 1928)	Bartels 1983

	Machaerosaurus sp. Gilmore 1928	Clyde 1997
Reptilia - Testudines

	Testudines indet. Batsch 1788	Clyde 1997

	cf. Plastomenus sp. Cope 1873	Clyde 1997
Amphibia - Temnospondyli - Batrachosauroididae

	Opisthotriton kayi Auffenberg 1961	Krause 1980
	= Opisthotriton sp. Auffenberg 1961	Clyde 1997
Amphibia - Temnospondyli - Urodela

	Piceoerpeton willwoodense (Meszoely 1967)	Naylor and Krause 1981
Amphibia - Temnospondyli

	Anura indet. (Fischer von Waldheim 1813)	Clyde 1997
see common names

Geography

Country:	United States	State/province:	Wyoming	County:	Big Horn
Coordinates:	44.7° North, 108.6° West (view map)
Paleocoordinates:	50.0° North, 89.8° West
Basis of coordinate:	estimated from map
Geographic resolution:	small collection

Time

Period:	Paleogene
10 m.y. bin:	Cenozoic 1-2
*Period:	Tertiary	*Epoch:	Paleocene
Key time interval:	Clarkforkian
Age range of interval:	56.2 - 54.9 m.y. ago
* legacy (obsolete) database fields

Stratigraphy

Formation:	Fort Union
Stratigraphy comments: "Early to middle Clarkforkian (Cf1 to Cf2)"

Lithology and environment

Primary lithology:	lithified "siliciclastic"
Includes fossils?	Y
Environment:	fluvial-lacustrine indet.	Tectonic setting:	intermontane basin

Taphonomy

Modes of preservation:	body
Size of fossils:	macrofossils,mesofossils
Preservation of anatomical detail:	good
Associated major elements:	some
Disassociated major elements:	many
Temporal resolution:	time-averaged
Spatial resolution:	parautochthonous

Collection methods and comments

Collection excludes:	some genera
Collection methods:	surface (float),surface (in situ),survey of museum collection
Reason for describing collection:	taxonomic analysis
Museum repositories:	UMMP
Taxonomic list comments:Zone Cf-2

Metadata

Database number:	15082
Authorizer:	J. Alroy, W. Clyde	Enterer:	J. Alroy, L. Gannon, W. Clyde
Modifier:	J. Marcot	Research group:	vertebrate
Created:	1993-09-27 00:00:00	Last modified:	2023-10-20 14:29:11
Access level:	the public	Released:	1993-09-27 00:00:00
Creative Commons license:	CC BY

Reference information

Primary reference:

2161.

D. W. Krause. 1987. Systematic Revision of the Genus Prochetodon (Ptilodontidae, Multituberculata) from the Late Paleocene and Early Eocene of Western North America. Contributions from the Museum of Paleontology, University of Michigan 27(8):221-236 [J. Alroy/J. Alroy/P. Mannion]

Secondary references:

6294		J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari]
724		W. S. Bartels. 1983. A transitional Paleocene-Eocene reptile fauna from the Bighorn Basin, Wyoming. Herpetologica 39(4):359-374 [J. Alroy/M. Sommers/M. Uhen]
1099		J. I. Bloch and P. D. Gingerich. 1998. Carpolestes simpsoni, New Species (Mammalia, Proprimates) from the Late Paleocene of the Clark's Fork Basin, Wyoming. Contributions from the Museum of Paleontology, University of Michigan 30(4):131-162 [J. Alroy/J. Alroy/P. Mannion]
11717		W. C. Clyde. 1997. Stratigraphy and mammalian paleontology of the McCullough Peaks, northern Bighorn Basin, Wyoming: Implications for biochronology, basin development, and community reorganization across the Paleocene-Eocene boundary. PhD Thesis, University of Michigan [W. Clyde/W. Clyde/J. Alroy]
1728		G. F. Gunnell. 1985. Systematics of Early Eocene Microsyopinae (Mammalia, Primates) in the Clark's Fork Basin, Wyoming. Contributions from the Museum of Paleontology, University of Michigan 27(2):51-71 [J. Alroy/J. Alroy/M. Uhen]
14358		D. W. Krause. 1980. Early Tertiary amphibians from the Bighorn Basin, Wyoming. University of Michigan Papers on Paleontology 243:69-71 [J. Alroy/J. Alroy/J. Alroy]
2157		D. W. Krause. 1980. Multituberculates from the Clarkforkian Land-Mammal Age, Late Paleocene-Early Eocene, of Western North America. Journal of Paleontology 54(6):1163-1183 [J. Alroy/J. Alroy/J. Ju]
28586		B. G. Naylor and D. W. Krause. 1981. Piceoerpeton, a giant early Tertiary salamander from western North America. Journal of Paleontology 55(3):507-523 [J. Alroy/J. Alroy]