Tehuichila (Neogene of Mexico)

Where: Hidalgo, Mexico (20.7° N, 98.7° W: paleocoordinates 21.0° N, 97.1° W)

• coordinate based on nearby landmark

When: Hemphillian (10.3 - 4.9 Ma)

• said to be Hemphillian

Environment/lithology: terrestrial

Primary reference: I. Ferrusquia-Villafranca. 1978. Bol Univ Nac Aut Mex Inst Geol 101:193-321 [J. Alroy/J. Alroy]more details

PaleoDB collection 18746: authorized by John Alroy, entered by John Alroy on 30.04.1994

Creative Commons license: CC BY (attribution)

Taxonomic list

• discussed as Potrero Zietla and placed at 4 km E (not W) of Zacualtiplan and 3 km N of Tehuichila on "the ranch El Suspiro" by Castilo-Ceron 2000 JVP abstract

•list of Miller and Carranza 1984 seems to be repeated without revision from Freudenberg 1922 (!)

•some material may be Blancan according to Carranza 1991; see also Zietla

•type of Protohippus castilli could be anything

•"Neohipparion montezuma" seems to be from the Blancan Zietla fauna: Carranza and Miller 1993

Mammalia
 Perissodactyla - Rhinocerotidae
Teleoceras sp.4 Hatcher 1894 rhinoceros
confirmed by Carranza and Miller 1993
 Perissodactyla - Equidae
Neohipparion eurystyle1 Cope 1893 hipparionine horse
Dinohippus interpolatus2 Cope 1893 horse
Calippus hondurensis3 Olson and McGrew 1941 horse
 Carnivora - Ursidae
Agriotherium sp. Wagner 1837 bear
 Xenarthra - Megalonychidae
Megalonyx sp.2 Harlan 1825 edentate
 Proboscidea - Gomphotheriidae
Cuvieronius tropicus1 Cope 1884 gomphothere
 Proboscidea - Mammutidae
Gomphotherium obscurum1 Leidy 1869 mastodon
 Ungulata - Tayassuidae
Tayassuinae indet. Palmer 1897 peccary
"Prosthennops": Miller and Carranza 1984; Carranza and Miller 1993
 Ungulata - Camelidae
Camelidae indet. Gray 1821 camel
"Procamelus"
 Ungulata - Antilocapridae
Hexobelomeryx sp.2 Furlong 1941 pronghorn