PBDB Collection

Ledge Creek No. 2: Chadronian, Wyoming

List of taxa

Where & when

Geology

Taphonomy & methods

Metadata & references

Taxonomic list

Mammalia - Carnivora - Amphicyonidae

	Brachyrhynchocyon sp. Scott and Jepsen 1936	Hunt 1998
	"Ledge Creek"
Mammalia - Carnivora - Canidae

	Pseudocynodictis sp. Schlosser 1902
	= Hesperocyon sp. Scott 1890	Alroy 2002
Mammalia - Perissodactyla - Brontotheriidae

	Brontotheriidae indet. (Marsh 1873)
Mammalia - Perissodactyla - Rhinocerotidae

	Subhyracodon mitis (Cope 1875)	Prothero 2005
	"185 feet below the 50-foot correlator ash, Ledge Creek, Natrona County, Wyoming
Mammalia - Perissodactyla - Hyracodontidae

	Hyracodon petersoni Wood 1926
	= Hyracodon priscidens Lambe 1905	Prothero 1996
Mammalia - Perissodactyla

	Toxotherium woodi Skinner and Gooris 1966
	= Toxotherium hunteri Wood 1961	Alroy 2002
Mammalia - Tayassuidae

	Perchoerus minor Cook 1922	Prothero 2009
Mammalia - Camelidae

	Poebrotherium eximium Hay 1902	Prothero 1996
	"290 feet on zonation section, Ledge Creek, Natrona Co."
Mammalia - Agriochoeridae

	Agriochoerus sp. Leidy 1850
Mammalia - Leptomerycidae

	Leptomeryx sp. Leidy 1853
	= Leptomeryx speciosus Lambe 1908	Heaton and Emry 1996
	in part

	Leptomeryx sp. Leidy 1853
	= Leptomeryx mammifer Cope 1885	Heaton and Emry 1996
	in part
Mammalia - Geolabididae

	Centetodon chadronensis Lillegraven et al. 1981	Lillegraven et al. 1981
Mammalia - Rodentia - Ischyromyidae

	Ischyromys cf. typus Leidy 1856	Wood 1976
see common names

Geography

Country:	United States	State/province:	Wyoming	County:	Natrona
Coordinates:	43.2° North, 107.1° West (view map)
Paleocoordinates:	44.8° North, 98.4° West
Basis of coordinate:	based on political unit

Time

Period:	Paleogene	Epoch:	Eocene
Stage:	Priabonian	10 m.y. bin:	Cenozoic 3
*Period:	Tertiary
Key time interval:	Chadronian
Age range of interval:	37.00000 - 33.90000 m.y. ago
* legacy (obsolete) database fields

Stratigraphy

Lithology and environment

Environment:

terrestrial indet.

Taphonomy

Modes of preservation:

body

Collection methods and comments

Taxonomic list comments:not the same as Bates Hole localities of Harshman 1972

Metadata

Also known as:	Red Fauna
Database number:	16986
Authorizer:	J. Alroy, J. Marcot	Enterer:	J. Alroy, J. Marcot
Research group:	vertebrate
Created:	1994-04-30 00:00:00	Last modified:	2002-06-03 03:27:41
Access level:	the public	Released:	1994-04-30 00:00:00
Creative Commons license:	CC BY

Reference information

Primary reference:

3177.

S. M. Skinner and R. J. Gooris. 1966. A note on Toxotherium (Mammalia, Rhinocerotoidea) from Natrona County, Wyoming. American Museum Novitates 2261:1-12 [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]
1818		T. H. Heaton and R. J. Emry. 1996. Leptomerycidae. In D. R. Prothero and R. J. Emry (eds.), The Terrestrial Eocene-Oligocene Transition in North America 581-608 [J. Alroy/J. Alroy/J. Marcot]
1977		R. M. Hunt, Jr. 1998. Amphicyonidae. 196-227 [J. Alroy/J. Alroy/J. Alroy]
2241		J. A. Lillegraven, M. C. McKenna, and L. Kristalka. 1981. Evolutionary relationships of middle Eocene and younger species of Centetodon (Mammalia, Insectivora, Geolabididae) with a description of the dentition of Ankylodon (Adapisoricidae). University of Wyoming Publication 45:1-115 [J. Alroy/J. Alroy/M. Uhen]
6272		D. R. Prothero. 1996. Hyracodontidae. In D. R. Prothero and R. J. Emry (eds.), The Terrestrial Eocene-Oligocene Transition in North America 652-663 [J. Alroy/J. Alroy/J. Alroy]
2805	5% 6280	D. R. Prothero. 1996. Camelidae. In D. R. Prothero and R. J. Emry (eds.), The Terrestrial Eocene-Oligocene Transition in North America 609-651 [J. Alroy/J. Alroy/J. Marcot]
51726		D. R. Prothero. 2005. The Evolution of North American Rhinoceroses. 1-218 [J. Marcot/J. Marcot]
57282		D. R. Prothero. 2009. The Early Evolution of the North American Peccaries (Artiodactyla: Tayassuidae). Papers on Geology, Vertebrate Paleontology, and Biostratigraphy in Honor of Michael O. Woodburne (Museum of Northern Arizona Bulletin 65) 509-541 [J. Marcot/J. Marcot]
3736		A. E. Wood. 1976. The Oligocene rodents Ischyromys and Titanotheriomys and the content of the family Ischyromyidae. Athlon 244-277 [J. Alroy/J. Alroy/M. Uhen]