Also known as Grant Quarry; Porter Ranch
Where: Donley County, Texas (35.0° N, 100.8° W: paleocoordinates 35.5° N, 98.3° W)
• coordinate based on political unit
• small collection-level geographic resolution
When: Clarendonian (12.5 - 9.4 Ma)
Environment/lithology: terrestrial; lithology not reported
Primary reference: R. C. Hulbert, Jr. 1989. Phylogenetic Interrelationships and Evolution of North American Late Equidae. In D. R. Prothero and R. M. Schoch (eds.), The Evolution of Perissodactyls [J. Alroy/J. Alroy/M. Uhen]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 18244: authorized by John Alroy, entered by John Alroy on 05.08.1992, edited by Jonathan Marcot
Creative Commons license: CC BY (attribution)
Taxonomic list
Mammalia | |
| |
| |
| |
"Ustatochoerus profectus" = Ustatochoerus major12
"Ustatochoerus profectus" = Ustatochoerus major12 Leidy 1858 oreodont also at Lull Quarry "W. of MacAdams Quarry"
| |
| |
| |
"Cranioceras clarendonensis n. sp." = Cranioceras teres5
| |
Longirostromeryx clarendonensis n. sp.5
| |
| |
| |
Hypohippus affinis11, Pliohippus fossulatus4, Calippus placidus, Calippus martini, Calippus regulus7, Protohippus supremus7, Neohipparion affine8, Hippotherium sp.1, Pseudhipparion hessei n. sp.14, Cormohipparion fricki n. sp.15, Hipparion tehonense8
Hipparion tehonense8 Merriam 1916 hipparionine horse probably includes Nannippus "A" of Hulbert 1989 pers. commun.: JA pers. obs. 1/93
|