Donnelly Ranch ( of the United States)

Where: Las Animas County, Colorado (37.3° N, 105.0° W: paleocoordinates 37.4° N, 104.4° W)

• coordinate based on political unit

When: Blancan (4.9 - 1.8 Ma)

Environment/lithology: terrestrial

Primary reference: M. W. Hager. 1975. Late Pliocene and Pleistocene history of the Donnelly Ranch vertebrate fauna, southeastern Colorado. Contributions to Geology, Special Paper 2:3-62 [J. Alroy/J. Alroy]more details

PaleoDB collection 19744: authorized by John Alroy, entered by John Alroy on 18.02.1993

Creative Commons license: CC BY (attribution)

Taxonomic list

• NISP 160
status of "Equus cf. achates" is unclear in light of Hulbert 1995b
Mammalia
 Proboscidea - Gomphotheriidae
Gomphotheriidae indet. Hay 1922 gomphothere
  - Mylodontidae
Paramylodon sp. Brown 1903 edentate
 Perissodactyla - Equidae
Equus calobatus, "Equus simplicidens" = Plesippus simplicidens
Equus calobatus Troxell 1915 horse
"Equus simplicidens" = Plesippus simplicidens Cope 1892 horse
 Perissodactyla - Tapiridae
"Tapirus haysii" = Tapirus (Helicotapirus) haysii
"Tapirus haysii" = Tapirus (Helicotapirus) haysii Leidy 1860 tapir
 Artiodactyla - Camelidae
Gigantocamelus sp. Barbour and Schultz 1939 camel
 Artiodactyla - Tayassuidae
Platygonus sp. Leconte 1848 peccary
 Rodentia - Sciuridae
Spermophilus (Otospermophilus) sp. Cuvier 1825 ground squirrel
 Rodentia - Heteromyidae
Prodipodomys centralis Hibbard 1941 rodent
 Rodentia - Geomyidae
Geomys sp. Rafinesque 1817 pocket gopher
 Rodentia - Cricetidae
Sigmodon curtisi Gidley 1922 cotton rat
Sigmodon minor Gidley 1922 cotton rat
probably OK as this predates the medius-minor debate