Where: Socorro County, New Mexico (34.0° N, 107.0° W)
• Paleocoordinates: 34.8° N, 106.0° W (Wright 2013)
• coordinate based on political unit
When: Palomas Formation, Blancan (4.9 - 1.8 Ma)
• "derived from a >70-m-thick succession of sand and gravel" and "medial Blancan" (Sealey et al. 2001)
Environment/lithology: fluvial; sandstone and conglomerate
Size class: macrofossils
Primary reference: R. H. Tedford. 1981. Mammalian biochronology of the late Cenozoic basins of New Mexico. Geological Society America Bulletin 92 [J. Alroy/J. Alroy/J. Ju]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 19968: authorized by John Alroy, entered by John Alroy on 15.05.2002
Creative Commons license: CC0 (CC0)
Taxonomic list
said by Tedford to be in the Sierra Ladrones Fm., but by Lucas et al. to be in the Palomas Fm.
see also Lucas and Morgan 1996
"Rhynchotherium sp." is from the Arroyo de la Parida Rhynchotherium Site: Lucas and Morgan 1996, Lucas et al. 2000
| Reptilia | |
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| Mammalia | |
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Stegomastodon sp. Pohlig 1912 gomphothere | |
"Equus simplicidens" = Plesippus simplicidens, "Equus cf. cumminsii" = Equus (Asinus) cumminsi, "Equus cf. scotti" = Equus mexicanus
"Equus simplicidens" = Plesippus simplicidens Cope 1892 horse present at NMMNH 3310, 1.6 km NW of Rhynchotherium site: Lucas and Morgan 1996
"Equus cf. cumminsii" = Equus (Asinus) cumminsi Cope 1893 horse
"Equus cf. scotti" = Equus mexicanus Hibbard 1955 horse | |
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cf. Capromeryx sp. Matthew 1902 pronghorn | |