Walnut Canyon (Neogene of the United States)

Where: northern Grant County, New Mexico (33.0° N, 108.5° W: paleocoordinates 33.4° N, 106.9° W)

• coordinate based on political unit

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

• said to be late Hemphillian

Environment/lithology: terrestrial

Primary reference: G. S. Morgan and P. L. Sealey. 1995. Late Miocene and Pliocene (Hemphillian and Blancan) vertebrate fossils from the Gila Group, southwestern New Mexico. New Mexico Geology 17(2):30 [J. Alroy/J. Alroy/J. Alroy]more details

PaleoDB collection 19602: authorized by John Alroy, entered by John Alroy on 05.08.1996, edited by Jonathan Marcot

Creative Commons license: CC BY (attribution)

Taxonomic list

• appears to include the "Mangas Trench" list of Tedford 1981 from Grant Co., including Dinohippus sp. and Astrohippus stockii
Mammalia
 Glires -
Rodentia indet. rodent
"small"
 Lagomorpha - Leporidae
Hypolagus sp. Dice 1917 rabbit
 Perissodactyla - Equidae
Dinohippus mexicanus Lance 1950 horse
Astrohippus stockii1 Lance 1950 horse
 Carnivora - Canidae
Cerdocyon texanus2 Tedford et al. 2009 crab-eating fox
 Ungulata - Camelidae
Megatylopus sp. Matthew and Cook 1909 camel
Hemiauchenia sp. Gervais and Ameghino 1880 camel
 Ungulata - Antilocapridae
Antilocapridae indet. Gray 1866 pronghorn