Tetrabelodon osborni Quarry (Miocene of the United States)

Where: Boyd County, Nebraska (42.9° N, 98.8° W: paleocoordinates 43.4° N, 95.5° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: lower Member (Valentine Formation), Barstovian (16.0 - 13.6 Ma)

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Primary reference: E. H. Barbour. 1917. The Boyd County Mastodon, Tetrabelodon osborni. Nebraska Geological Survey 4(30):1-14 [J. Alroy/J. Alroy/M. Uhen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 18416: authorized by John Alroy, entered by John Alroy on 27.09.1993

Creative Commons license: CC BY (attribution)

Taxonomic list

• not the same as Tetrabelodon Skull Quarry
said by Barbour to be in the Devil's Gulch, but this could be Crookston Bridge: Skinner and Johnson 1984 p. 279
Mammalia
 Rodentia - Castoridae
Eucastor tortus Leidy 1858 beaver
 Perissodactyla - Rhinocerotidae
Rhinocerotidae indet. Gray 1821 rhinoceros
 Perissodactyla - Equidae
Hipparionini indet. Quinn 1955 hipparionine horse
Equini indet. Quinn 1955 horse
 Proboscidea - Gomphotheriidae
"Gomphotherium willistoni" = Tetrabelodon osborni
"Gomphotherium willistoni" = Tetrabelodon osborni Barbour 1916 gomphothere
 Artiodactyla - Camelidae
Camelidae indet. Gray 1821 camel