Yepomera (Neogene of Mexico)

Also known as UALP Y-39 = IGCU Ch-15; Rincon; CIT 276, 286

Where: Chihuahua, Mexico (28.8° N, 108.0° W: paleocoordinates 29.2° N, 106.4° W)

• coordinate based on nearby landmark

When: Late/Upper Hemphillian (10.3 - 4.9 Ma)

Environment/lithology: terrestrial; lithology not reported

Size classes: macrofossils, mesofossils

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

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 18755: authorized by John Alroy, entered by John Alroy on 18.02.1993, edited by Jonathan Tennant, Jonathan Marcot and Mark Uhen

Creative Commons license: CC BY (attribution)

Taxonomic list

• 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)
Show authors, comments, and common names
Amphibia
 Salientia - Bufonidae
Bufo campi n. sp.2
Bufo campi n. sp.2 toad
CIT 276
Reptilia
 Testudines - Testudinidae
cf. Gopherus sp.3
cf. Gopherus sp.3 Rafinesque 1832 gopher tortoise
"probably" this genus: from CIT 448
 Squamata - Iguanidae
Phrynosoma sp.8, Sceloporus sp.8
Phrynosoma sp.8 Wiegmann 1828 horned lizard
Sceloporus sp.8 Wiegmann 1828 spiny lizard
Aves
 Charadriiformes - Scolopacidae
"? Erolia sp." = Calidris5
"? Erolia sp." = Calidris5 Gmelin 1789 snipe
CIT 276
 Anseriformes - Anatidae
Oxyura sp.5, Wasonaka yepomerae n. gen. n. sp.5, "Anas bunkeri" = Nettion bunkeri5, Eremochen cf. russelli5
Oxyura sp.5 Bonaparte 1828 waterfowl
CIT 289
Wasonaka yepomerae n. gen. n. sp.5 Howard 1966 duck
CIT 286
"Anas bunkeri" = Nettion bunkeri5 Wetmore 1944 duck
CIT 289
Eremochen cf. russelli5 Brodkorb 1961 goose
CIT 289
 Passeriformes - Mimidae
? Mimidae indet.5
? Mimidae indet.5 Bonaparte 1853 perching bird
CIT 289
 Phoenicopteriformes - Phoenicopteridae
Phoenicopterus stocki n. sp.7
Phoenicopterus stocki n. sp.7 Miller 1944 flamingo
"Rincón Pliocene" (CIT 289), CIT 276
Mammalia
 Perissodactyla - Rhinocerotidae
Teleoceras hicksi
Teleoceras hicksi Cook 1927 rhinoceros
 Perissodactyla - Equidae
Nannippus cf. aztecus1, Neohipparion eurystyle1, Astrohippus stockii1, Dinohippus mexicanus n. sp.
Nannippus cf. aztecus1 Mooser 1968 hipparionine horse
Neohipparion eurystyle1 Cope 1893 hipparionine horse
Astrohippus stockii1 Lance 1950 horse
Dinohippus mexicanus n. sp. Lance 1950 horse
 Artiodactyla - Tayassuidae
Catagonus sp.10
Catagonus sp.10 Ameghino 1904 peccary
 Artiodactyla - Camelidae
? Megatylopus sp., Hemiauchenia sp.
? Megatylopus sp. Matthew and Cook 1909 camel
Hemiauchenia sp. Gervais and Ameghino 1880 camel
 Artiodactyla - Antilocapridae
Hexobelomeryx fricki n. sp.
Hexobelomeryx fricki n. sp. Furlong 1941 pronghorn
 Carnivora - Canidae
Canidae indet., Vulpes stenognathus9, Eucyon davisi9, "Canis ferox" = Eucyon ferox9, ? Borophagus sp.1
Canidae indet. Fischer de Waldheim 1817 canid
Vulpes stenognathus9 Savage 1941 fox
Eucyon davisi9 Merriam 1911 canine
"CIT locality 276" and "CIT locality 287"
"Canis ferox" = Eucyon ferox9 Miller and Carranza-Castaneda 1998 canine
"CIT locality 275"
? Borophagus sp.1 Cope 1892 bone-crushing dog
 Carnivora - Felidae
? Pseudaelurus sp., "Machairodus coloradensis" = Amphimachairodus coloradensis
? Pseudaelurus sp. Leidy 1858 cat
"Machairodus coloradensis" = Amphimachairodus coloradensis Cook 1922 cat
listed by Lance 1950 as "Machairodus catacopsis"; Lindsay 1984 lists "Nimravides catacopis"; probably not Nimravides thinobates
 Carnivora - Mustelidae
Taxidea mexicana
Taxidea mexicana Drescher 1939 badger
 Carnivora - Ursidae
"Agriotherium cf. schneideri" = Huracan schneideri
"Agriotherium cf. schneideri" = Huracan schneideri Sellards 1916 bear
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
 Soricomorpha - Soricidae
Soricidae indet.
Soricidae indet. Fischer 1814 shrew
 Rodentia - Cricetidae
Prosigmodon chihuahuensis6, Prosigmodon oroscoi, Baiomys kolbi, "Bensonomys elachys" = Calomys (Bensonomys) elachys6, "Bensonomys baskini" = Calomys (Bensonomys) baskini6, "Antecalomys valensis" = Postcopemys valensis1
Prosigmodon chihuahuensis6 Lindsay and Jacobs 1985 rodent
Prosigmodon oroscoi Jacobs and Lindsay 1981 rodent
UALP Y-39
Baiomys kolbi Hibbard 1952 pygmy mouse
"Bensonomys elachys" = Calomys (Bensonomys) elachys6 Lindsay and Jacobs 1985 rodent
"Bensonomys baskini" = Calomys (Bensonomys) baskini6 Lindsay and Jacobs 1985 rodent
"Antecalomys valensis" = Postcopemys valensis1 Shotwell 1967 rodent
 Rodentia - Heteromyidae
Prodipodomys idahoensis, Heteromyinae indet.1
Prodipodomys idahoensis Hibbard 1962 rodent
Heteromyinae indet.1 Gray 1868 rodent
 Rodentia - Geomyidae
Geomys carranzai6
Geomys carranzai6 Lindsay and Jacobs 1985 pocket gopher
 Rodentia - Sciuridae
Parapaenemarmota pattersoni6, Paenemarmota mexicana4, Spermophilus matachicensis6
Parapaenemarmota pattersoni6 Wilson 1949 squirrel
Paenemarmota mexicana4 Wilson 1949 squirrel
Spermophilus matachicensis6 Wilson 1949 ground squirrel
 Lagomorpha - Leporidae
Notolagus velox n. sp.
Notolagus velox n. sp. Wilson 1937 rabbit
 Proboscidea - Gomphotheriidae
cf. Stegomastodon sp.
cf. Stegomastodon sp. Pohlig 1912 gomphothere
 Chiroptera - Vespertilionidae
Plionycteris russelli6
Plionycteris russelli6 vesper bat
a bat; "Vespertilionidae gen. & sp. nov."
1Alroy 2002; 2Brattstrom 1955; 3Brattstrom 1961; 4Dalquest and Mooser 1980; 5Howard 1966; 6Lindsay and Jacobs 1985; 7Miller 1944; 8Reynoso 2006; 9Tedford et al. 2009; 10Wright 1989