Paleo Quarry (Miocene to of the United States)

Also known as Paleo Channel Quarry

Where: Sheridan County, Nebraska (42.7° N, 102.5° W: paleocoordinates 43.2° N, 99.7° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Valentine Formation (Ogallala Group), Barstovian to Barstovian (16.0 - 10.3 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Primary reference: X. Wang, R. H. Tedford, and B. E. Taylor. 1999. Phylogenetic systematics of the Borophaginae (Carnivora: Canidae). Bulletin of the American Museum of Natural History 243:1-392 [J. Alroy/J. Alroy/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 18306: authorized by John Alroy, entered by John Alroy on 19.05.2000, edited by Jonathan Marcot

Creative Commons license: CC BY (attribution)

Taxonomic list

• see Skinner and Johnson 1984 for locality data: possibly in the Burge Member, but stratigraphic data are ambivalent
Mammalia
 Perissodactyla - Rhinocerotidae
Aphelops megalodus3 Cope 1873 rhinoceros
 Perissodactyla - Equidae
Merychippus sp.1 Leidy 1856 horse
F:AM 69508; "Paleo-channel Quarry"
Protohippus perditus1 Leidy 1858 horse
F:AM 116128
 Carnivora - Amphicyonidae
Ischyrocyon sp.2 Matthew and Gidley 1904 bear-dog
 Carnivora - Canidae
Leptocyon vafer4 Leidy 1858 canine
Paratomarctus euthos McGrew 1935 bone-crushing dog
Burge Member at "Paleo Channel Quarry"