Also known as Three Miles Above Ojo Alamo
Where: San Juan County, New Mexico (36.3° N, 108.2° W: paleocoordinates 42.9° N, 88.3° W)
• coordinate based on political unit
When: Nacimiento Formation, Torrejonian (63.8 - 60.9 Ma)
• within and not close to the bottom of a normal magnetic polarity zone in the Barrel Spring Arroyo = De-na-zin Wash section interpreted as C28n based on the position of the K-T boundary in the section: see Butler et al. 1977, Lucas et al. 1997
Environment/lithology: terrestrial
Primary reference: T. E. Williamson and S. G. Lucas. 1993. Paleocene vertebrate paleontology of the San Juan Basin, New Mexico. New Mexico Museum of Natural History Bulletin 2:105-136 [J. Alroy/J. Alroy/M. Uhen]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 14856: authorized by John Alroy, entered by John Alroy on 30.04.1994
Creative Commons license: CC BY (attribution)
Taxonomic list
identical to list 9 of Williamson 1996
in a magnetically normal part of the local section that probably represents chron 28N
Mammalia | |
Periptychus carinidens Cope 1881 condylarth |