PBDB Collection

Guernsey: Harrisonian, Wyoming

List of taxa

Where & when

Geology

Taphonomy & methods

Metadata & references

Taxonomic list

Mammalia - Rodentia - Entoptychidae

	Gregorymys riggsi Wood 1936
	6 mi SW of Guernsey, Platte Co.; "Upper Harrison"
Mammalia - Protoceratidae

	Syndyoceras cooki Barbour 1905	Patton and Taylor 1971
	Roll Quarry (3 mi S of Guernsey) and prospects 3 mi SE of Guernsey, Platte Co., in the "lower... Marsland"
Mammalia - Camelidae

	Stenomylus gracilis Peterson 1907	Frick and Taylor 1968
	3 mi SE; 2 mi S ("low"); 4 mi SW ("high"); and 6 mi SW ("very high") of Guernsey

	Tanymykter brachyodontus (Peterson 1904)	Honey and Taylor 1978
	3 mi SW of Guernsey, Upper Harrison equivalent
Mammalia - Merycoidodontidae

	Merychyus arenarum Cope 1884	Schultz and Falkenbach 1947
	"Guernsey area, Platte County"

	Merychyus minimus Peterson 1907	Schultz and Falkenbach 1947
	"Guernsey area, Platte County"

	Phenacocoelus stouti n. sp. Schultz and Falkenbach 1950	Schultz and Falkenbach 1950
	recombined as Merycoides stouti
	"lower... Marsland" at Roll Quarry "2 mi. S. of Guernsey"
Mammalia - Perissodactyla - Equidae

	Parahippus sp. (Leidy 1858)	Hunt 2002
	original and current combination Anchitherium (Parahippus)
	Roll Quarry
Mammalia - Perissodactyla - Rhinocerotidae

	Menoceras sp. Troxell 1921	Hunt 2002
	Roll Quarry
	= Menoceras arikarense Barbour 1906	Prothero 2005
Mammalia - Carnivora - Canidae

	Desmocyon thomsoni (Matthew 1907)	Wang et al. 1999
	"Upper Harrison beds... 6 mi west of Guernsey, high brown sand" and "2 mi southwest of Guernsey, 20 ft above white layer"

	Phlaocyon minor (Matthew 1907)	Wang et al. 1999
	"Upper Harrison beds... 3 mi southeast of Guernsey, 7 ft below the green-white layer"

	Paraenhydrocyon wallovianus (Cope 1881)	Wang 1994
	5 mi SE of Guernsey, Platte Co., "possibly Upper Arikaree Group"
Mammalia - Carnivora - Amphicyonidae

	Temnocyon sp. Cope 1878	Hunt 1998
	"Upper Harrison beds, near Guernsey"
	= Temnocyon macrogenys n. sp. Hunt 2011	Hunt 2011
	Anderson Ranch Fm., ‘‘High Daemonelix zone,’’ 2-Mile District of Charles Falkenbach, near Guernsey, Platte County, Wyoming

	Adilophontes brachykolos Hunt 2002	Hunt 2002
	Roll Quarry 3 mi S of Guernsey (6 measurements)
see common names

Geography

Country:	United States	State/province:	Wyoming	County:	Platte
Coordinates:	42.1° North, 105.0° West (view map)
Paleocoordinates:	43.0° North, 100.0° West
Basis of coordinate:	based on political unit

Time


10 m.y. bin:	Cenozoic 4-5
*Period:	Tertiary	*Epoch:	Miocene
Key time interval:	Harrisonian
Age range of interval:	23.10000 - 18.50000 m.y. ago
* legacy (obsolete) database fields

Stratigraphy

Geological group:	Hemingford	Formation:	Marsland
Stratigraphic resolution:	group of beds
Stratigraphy comments: = Upper Harrison beds

Lithology and environment

Primary lithology:	not reported
Environment:	terrestrial indet.

Taphonomy

Modes of preservation:	body
Size of fossils:	macrofossils

Collection methods and comments

Collection excludes:	some genera
Reason for describing collection:	taxonomic analysis

Metadata

Also known as:	Roll Quarry
Database number:	17788
Authorizer:	J. Alroy, J. Marcot	Enterer:	J. Alroy, J. Marcot
Modifier:	M. Carrano	Research group:	vertebrate
Created:	1995-03-26 00:00:00	Last modified:	2018-02-05 13:48:28
Access level:	the public	Released:	1995-03-26 00:00:00
Creative Commons license:	CC BY

Reference information

Primary reference:

3530.

J. H. Wahlert and R. A. Souza. 1988. Skull morphology of Gregorymys and relationships of the Entoptychinae (Rodentia, Geomyidae). American Museum Novitates 2922:1-13 [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]
1549		C. Frick and B. E. Taylor. 1968. A Generic Review of the Stenomyline Camels. American Museum Novitates 2353:1-51 [J. Alroy/J. Alroy/B. Beatty]
1934		J. G. Honey and B. E. Taylor. 1978. A generic revision of the Protolabidini (Mammalia, Camelidae), with a description of two new protolabidines. Bulletin of the American Museum of Natural History 161(3):367-426 [J. Alroy/J. Alroy/J. Marcot]
1977		R. M. Hunt, Jr. 1998. Amphicyonidae. 196-227 [J. Alroy/J. Alroy/J. Alroy]
7676		R. M. Hunt, Jr. 2002. New amphicyonid carnivorans (Mammalia, Daphoeninae) from the early Miocene of southeastern Wyoming. American Museum Novitates 3385:1-41 [J. Alroy/J. Alroy/J. Alroy]
52421		R. M. Hunt, Jr. 2011. Evolution of Large Carnivores During the Mid-Cenozoic of North America: The Temnocyonine Radiation (Mammalia, Amphicyonidae). Bulletin of the American Museum of Natural History 358:1-153 [J. Marcot/J. Marcot]
2739		T. H. Patton and B. E. Taylor. 1971. The Synthetoceratinae (Mammalia, Tylopoda, Protoceratidae). Bulletin of the American Museum of Natural History 145(2):119-218 [J. Alroy/J. Alroy/B. Beatty]
51726		D. R. Prothero. 2005. The Evolution of North American Rhinoceroses. 1-218 [J. Marcot/J. Marcot]
3064		C. B. Schultz and C. H. Falkenbach. 1947. Merychyinae, a subfamily of oreodonts. Bulletin of the American Museum of Natural History 88(4):157-286 [J. Alroy/J. Alroy/J. Marcot]
3066		C. B. Schultz and C. H. Falkenbach. 1950. Phenacocoelinae, a new subfamily of oreodonts. Bulletin of the American Museum of Natural History 95(3) [J. Alroy/J. Alroy/J. Ju]
6226		X. Wang. 1994. Phylogenetic systematics of the Hesperocyoninae (Carnivora: Canidae). Bulletin of the American Museum of Natural History 221:1-207 [J. Alroy/J. Alroy/J. Alroy]
3558		X. Wang, R. H. Tedford, and B. E. Taylor. 1999. Phylogenetic systematics of the Borophaginae (Carnivora: Canidae). Bulletin of the American Museum of Natural History 243:1-392 [J. Alroy/J. Alroy/J. Alroy]