PBDB Collection

Yepomera: Late/Upper Hemphillian, Mexico

List of taxa

Where & when

Geology

Taphonomy & methods

Metadata & references

Taxonomic list

Amphibia - Temnospondyli - Bufonidae

	Bufo campi n. sp.	Brattstrom 1955
	CIT 276
Reptilia - Iguanidae

	Sceloporus sp. Wiegmann 1828	Reynoso 2006

	Phrynosoma sp. Wiegmann 1828	Reynoso 2006
Reptilia - Charadriiformes - Scolopacidae

	? Erolia sp.	Howard 1966
	synonym of Calidris
	CIT 276
Reptilia - Phoenicopteriformes - Phoenicopteridae

	Phoenicopterus stocki n. sp. Miller 1944	Miller 1944
	"Rincón Pliocene" (CIT 289), CIT 276
Reptilia - Anseriformes - Anatidae

	Wasonaka yepomerae n. gen., n. sp. Howard 1966	Howard 1966
	CIT 286

	Anas bunkeri (Wetmore 1944)	Howard 1966
	original and current combination Nettion bunkeri
	CIT 289

	Eremochen cf. russelli Brodkorb 1961	Howard 1966
	CIT 289

	Oxyura sp. Bonaparte 1828	Howard 1966
	CIT 289
Reptilia - Passeriformes - Mimidae

	? Mimidae indet. Bonaparte 1853	Howard 1966
	CIT 289
Reptilia - Testudines - Testudinidae

	cf. Gopherus sp. Rafinesque 1832	Brattstrom 1961
	"probably" this genus: from CIT 448
Mammalia - Proboscidea - Gomphotheriidae

	cf. Stegomastodon sp. Pohlig 1912
Mammalia - Chiroptera - Vespertilionidae

	Plionycteris russelli	Lindsay and Jacobs 1985
	a bat; "Vespertilionidae gen. & sp. nov."
Mammalia - Rodentia - Sciuridae

	Spermophilus pattersoni (Wilson 1949)
	= Parapaenemarmota pattersoni Wilson 1949	Lindsay and Jacobs 1985
	"S. sp." in part

	Paenemarmota barbouri Hibbard and Schultz 1948
	(6 measurements)
	= Paenemarmota mexicana Wilson 1949	Dalquest and Mooser 1980
	this is the type from CIT 287 (Arroyo de Calabasas), see Wilson 1949e

	Spermophilus sp. Cuvier 1825
	= Spermophilus matachicensis Wilson 1949	Lindsay and Jacobs 1985
	in part
Mammalia - Rodentia - Cricetidae

	Prosigmodon sp. Jacobs and Lindsay 1981
	(4 measurements)
	= Prosigmodon chihuahuensis Lindsay and Jacobs 1985	Lindsay and Jacobs 1985
	said to be new

	Prosigmodon oroscoi Jacobs and Lindsay 1981
	UALP Y-39 (4 measurements)

	Baiomys kolbi Hibbard 1952

	Copemys valensis (Shotwell 1967)
	= Antecalomys valensis Shotwell 1967	Alroy 2002
	recombined as Postcopemys valensis

	Calomys elachys Lindsay and Jacobs 1985
	(1 measurement)
	= Bensonomys elachys Lindsay and Jacobs 1985	Lindsay and Jacobs 1985
	recombined as Calomys (Bensonomys) elachys
	"C. sp." said to be new (form A)

	Calomys baskini Lindsay and Jacobs 1985
	= Bensonomys baskini Lindsay and Jacobs 1985	Lindsay and Jacobs 1985
	recombined as Calomys (Bensonomys) baskini
	"C. sp." said to be new (form B)
Mammalia - Rodentia - Geomyidae

	Pliogeomys carranzai Lindsay and Jacobs 1985
	(1 measurement)
	= Geomys carranzai Lindsay and Jacobs 1985	Lindsay and Jacobs 1985
	"P. sp." said to be new
Mammalia - Rodentia - Heteromyidae

	Prodipodomys idahoensis Hibbard 1962
	(3 measurements)

	Perognathus sp. Maximillian 1839
	= Heteromyinae indet. Gray 1868	Alroy 2002
Mammalia - Lagomorpha - Leporidae

	Notolagus velox n. sp. Wilson 1937
Mammalia - Soricidae

	Soricidae indet. Fischer 1814
Mammalia - Carnivora - Ursidae

	Agriotherium cf. schneideri Sellards 1916
	recombined as Huracan schneideri
	presumably specimen from CIT 275 "in the Arroyo Huachin, at Rincon" described by Stock 1950 and said to be from Yepomera by Miller and Carranza 1996
Mammalia - Carnivora - Mustelidae

	Taxidea mexicana Drescher 1939
Mammalia - Carnivora - Felidae

	? Pseudaelurus sp. Leidy 1858

	Machairodus coloradensis Cook 1922
	recombined as Amphimachairodus coloradensis
	listed by Lance 1950 as "Machairodus catacopsis"; Lindsay 1984 lists "Nimravides catacopis"; probably not Nimravides thinobates
Mammalia - Carnivora - Canidae

	Canidae indet. Fischer de Waldheim 1817

	Eucyon davisi (Merriam 1911)	Tedford et al. 2009
	"CIT locality 276" and "CIT locality 287"

	Canis ferox Miller and Carranza-Castaneda 1998	Tedford et al. 2009
	recombined as Eucyon ferox
	"CIT locality 275"

	Osteoborus sp. Stirton and VanderHoof 1933
	= ? Borophagus sp. Cope 1892	Alroy 2002

	Vulpes sp. Frisch 1775
	= Vulpes stenognathus Savage 1941	Tedford et al. 2009
Mammalia - Antilocapridae

	Hexobelomeryx fricki n. sp. Furlong 1941
Mammalia - Tayassuidae

	Prosthennops sp. Matthew and Gidley 1904
	= Catagonus sp. Ameghino 1904	Wright 1989
Mammalia - Camelidae

	? Megatylopus sp. (Matthew and Cook 1909)
	original and current combination Pliauchenia (Megatylopus)

	Hemiauchenia sp. Gervais and Ameghino 1880
Mammalia - Perissodactyla - Equidae

	Dinohippus mexicanus n. sp. (Lance 1950)
	original and current combination Pliohippus (Pliohippus) mexicanus

	Pliohippus stockii n. sp. Lance 1950
	= Astrohippus stockii Lance 1950	Alroy 2002
	original and current combination Pliohippus (Astrohippus) stockii

	Neohipparion arellanoi n. sp. Stirton 1955
	(6 measurements)
	= Neohipparion eurystyle Cope 1893	Alroy 2002
	(CIT 276 also CIT 286, Arroyo de las Barrancas Blancas, and CIT 289, Arroyo de los Ponos) and "N. floresi" type (Arroyo Huachin, CIT 275): see Stirton 1955

	Nannippus cf. minor (Sellards 1916)
	= Nannippus cf. aztecus Mooser 1968	Alroy 2002
Mammalia - Perissodactyla - Rhinocerotidae

	Teleoceras hicksi Cook 1927
see common names

Geography

Country:	Mexico	State/province:	Chihuahua
Coordinates:	28.8° North, 108.0° West (view map)
Paleocoordinates:	29.2° North, 106.4° West
Basis of coordinate:	based on nearby landmark

Time

Period:	Neogene
10 m.y. bin:	Cenozoic 6
*Period:	Tertiary	*Epoch:	Miocene
Key time interval:	Late/Upper Hemphillian
Age range of interval:	9.40000 - 4.70000 m.y. ago
* legacy (obsolete) database fields

Stratigraphy

Local section:	Yepom	Local bed:	1
Local order:	bottom to top

Lithology and environment

Primary lithology:	not reported
Environment:	terrestrial indet.

Taphonomy

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

Collection methods and comments

Reason for describing collection:	general faunal/floral analysis
Taxonomic list comments:appears to include CIT 275 (Arroyo Huachin) see Lindsay for paleomag underlies Concha Wilson 1949e describes "Citellus sp." from CIT 276 (Arroyo de los Burros) and CIT 286 (Arroyo de las Barrancas Blancas)

Metadata

Also known as:	UALP Y-39 = IGCU Ch-15; Rincon; CIT 276, 286
Database number:	18755
Authorizer:	J. Alroy, P. Mannion, J. Marcot, M. Uhen	Enterer:	J. Alroy, J. Tennant, J. Marcot, M. Uhen
Modifier:	J. Alroy	Research group:	vertebrate
Created:	1993-02-18 00:00:00	Last modified:	2009-12-18 13:02:49
Access level:	the public	Released:	1993-02-18 00:00:00
Creative Commons license:	CC BY

Reference information

Primary reference:

2245.

E. H. Lindsay. 1984. Late Cenozoic Mammals from Northwestern Mexico. Journal of Vertebrate Paleontology 4(2):208-215 [J. Alroy/J. Alroy/J. Ju]

Secondary references:

6294		J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari]
9310	5% 43300	B. H. Brattstrom. 1955. Records of some Pliocene and Pleistocene reptiles and amphibians from Mexico. Bulletin, Southern California Academy of Sciences 54(1):1-4 [J. Alroy/J. Alroy/M. Carrano]
697		B. H. Brattstrom. 1961. Some new fossil tortoises from western North America with remarks on the zoogeography and paleoecology of tortoises. Journal of Paleontology 35(3):543-560 [J. Alroy/M. Sommers/J. Alroy]
1323	5% 32840	W. W. Dalquest and O. Mooser. 1980. Late Hemphillian mammals of the Ocote local fauna, Guanajuato, Mexico. Pearce-Sellards Series 32:1-25 [J. Alroy/J. Alroy/J. Alroy]
75129		H. Howard. 1966. Pliocene birds from Chihuahua, Mexico. Los Angeles County Museum Contributions in Science 94:1-12 [M. Uhen/M. Uhen]
2249		E. H. Lindsay and L. L. Jacobs. 1985. Pliocene small mammal fossils from Chihuahua, Mexico. Paleontologia Mexicana 51:1-53 [J. Alroy/J. Alroy/J. Alroy]
32223		L. Miller. 1944. A Pliocene flamingo from Mexico. Wilson Bulletin 56(2):77-82 [J. Alroy/J. Alroy]
46663		V.-H. Reynoso. 2006. Research on fossil amphibians and reptiles in Mexico, from 1869 to early 2004 (including marine forms but excluding pterosaurs, dinosaurs, and obviously, birds). In F. J. Vega, T. G. Nyborg, M. Del Carmen Perrilliat, M. Montellano-Ballesteros, S. R. S. Cevallos-Ferriz, S. A. Quiroz-Barroso (eds.), Studies on Mexican Paleontology 24:209-231 [P. Mannion/J. Tennant]
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]
3774		D. B. Wright. 1989. Phylogenetic relationships of Catagonus wagneri: sister taxa from the Tertiary of North America. Advances in Neotropical Mammalogy 281-308 [J. Alroy/J. Alroy/M. Uhen]