PBDB Collection

Hans Johnson Quarry: Clarendonian, Nebraska

List of taxa

Where & when

Geology

Taphonomy & methods

Metadata & references

Taxonomic list

unclassified

	Antilocaprini indet.	Frick 1937
	postcrania listed under "Plioceros floblairi"
Mammalia - Carnivora - Canidae

	Eucyon skinneri n. sp. Tedford et al. 2009	Tedford et al. 2009

	Epicyon saevus (Leidy 1858)	Wang et al. 1999

	Epicyon haydeni (Leidy 1858)	Wang et al. 1999

	Aelurodon taxoides Hatcher 1894	Wang et al. 1999
	"Hans Johnson Place"
Mammalia - Carnivora - Nimravidae

	Barbourofelis morrisi Schultz et al. 1970
Mammalia - Merycoidodontidae

	Ustatochoerus major (Leidy 1858)	Schultz and Falkenbach 1941
	= Merychyus major Leidy 1858	Alroy 2002
	recombined as Ustatochoerus major
Mammalia - Gelocidae

	Pseudoceras skinneri Frick 1937	Frick 1937
	also includes "P. potteri" type of Frick 1937
Mammalia - Palaeomerycidae

	Cranioceras granti Frick 1937	Frick 1937
	= Cranioceras unicornis Matthew 1918	Alroy 2002
	"Hans Johnson's Ranch"
Mammalia - Moschidae

	Parablastomeryx gregorii Frick 1937	Prothero 2008
Mammalia - Perissodactyla - Rhinocerotidae

	Aphelops megalodus (Cope 1873)	Prothero 2005

	Teleoceras major Hatcher 1894	Prothero 2005
	"Hans Johnson Place"
Mammalia - Perissodactyla - Equidae

	Calippus cerasinus (Hulbert 1988)	Hulbert 1989
	pers. commun.

	Neohipparion trampasense (Edwards 1982)	Hulbert 1987

	Hippotherium sp. Kaup 1832	Alroy 2002
	JA pers. obs.: new small, short notch species

	Pseudhipparion skinneri Webb and Hulbert 1986	Hulbert 1989
	pers. commun.

	Hippotherium occidentale (Leidy 1856)	MacFadden 1984
	recombined as Cormohipparion occidentale
	confirmed by Woodburne 1996a

	Cormohipparion matthewi Woodburne 2007	Woodburne 2007
see common names

Geography

Country:	United States	State/province:	Nebraska	County:	Cherry
Coordinates:	42.8° North, 100.8° West (view map)
Paleocoordinates:	43.3° North, 98.2° West
Basis of coordinate:	based on political unit
Geographic resolution:	small collection

Time

Period:	Neogene	Epoch:	Miocene
10 m.y. bin:	Cenozoic 5-6
*Period:	Tertiary
Key time interval:	Clarendonian
Age range of interval:	12.50000 - 9.40000 m.y. ago
* legacy (obsolete) database fields

Stratigraphy

Formation:	Ash Hollow	Member:	Merritt Dam
Local section:	ValAH	Local bed:	6
Local order:	bottom to top

Lithology and environment

Environment:

terrestrial indet.

Taphonomy

Modes of preservation:

body

Collection methods and comments

Collection excludes:	some genera
Taxonomic list comments:167 F:AM specimens: Skinner and Johnson 1984

Metadata

Database number:	18214
Authorizer:	J. Alroy, J. Marcot	Enterer:	J. Alroy, J. Marcot
Modifier:	J. Alroy	Research group:	vertebrate
Created:	1992-08-05 00:00:00	Last modified:	2007-08-25 19:20:36
Access level:	the public	Released:	1993-02-18 00:00:00
Creative Commons license:	CC BY

Reference information

Primary reference:

3077.

C. B. Schultz, M. Schultz, and L. D. Martin. 1970. A new Tribe of Saber-toothed cats (Barbourofelini) from the Pliocene of North America. Bulletin of the Nebraska State Museum 9(1):1-31 [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]
6222		C. Frick. 1937. Horned ruminants of North America. Bulletin of the American Museum of Natural History 69:1-669 [J. Alroy/J. Alroy/M. Uhen]
3850	5% 23520	R. C. Hulbert, Jr. 1987. Late Neogene Neohipparion (Mammalia, Equidae) from the Gulf Coastal Plain of Florida and Texas. Journal of Paleontology 61(4):809-830 [J. Alroy/M. Sommers/J. Alroy]
1952		R. C. Hulbert, Jr. 1989. Phylogenetic Interrelationships and Evolution of North American Late Equidae. In D. R. Prothero and R. M. Schoch (eds.), The Evolution of Perissodactyls [J. Alroy/J. Alroy/M. Uhen]
6244		B. J. MacFadden. 1984. Systematics and phylogeny of Hipparion, Neohipparion, Nannippus, and Cormohipparion (Mammalia, Equidae) from the Miocene and Pliocene of the New World. Bulletin of the American Museum of Natural History 179(1):1-195 [J. Alroy/J. Alroy/J. Marcot]
51726		D. R. Prothero. 2005. The Evolution of North American Rhinoceroses. 1-218 [J. Marcot/J. Marcot]
51375		D. R. Prothero. 2008. Systematics of the musk deer (Artiodactyla: Moschidae: Blastomerycinae) from the Miocene of North America. In S. G. Lucas, G. S. Morgan, J. A. Spielmann, D. R. Prothero (eds.), Neogene Mammals 44:207-223 [J. Marcot/J. Marcot/J. Marcot]
3063		C. B. Schultz and C. H. Falkenbach. 1941. Ticholeptinae, a new subfamily of oreodonts. Bulletin of the American Museum of Natural History 79(1):1-105 [J. Alroy/J. Alroy/J. Marcot]
52058		R. H. Tedford, X. Wang, and B. E. Taylor. 2009. Phylogenetic Systematics of the North American Fossil Caninae (Carnivora: Canidae). Bulletin of the American Museum of Natural History 325:1-218 [J. Marcot/J. Marcot/G. Lloyd]
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]
45368		M. O. Woodburne. 2007. Phyletic diversification of the Cormohipparion occidentale complex (Mammalia; Perissodactyla, Equidae), Late Miocene, North America, and the origin of the Old World Hippotherium datum. Bulletin of the American Museum of Natural History 306(1):1-138 [P. Wagner/P. Wagner]