Where: San Juan County, New Mexico (36.1° N, 108.0° W: paleocoordinates 43.0° N, 87.1° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Nacimiento Formation, Puercan (66.0 - 63.3 Ma)
• "the Torrejon beds, the upper division of the Puerco formation, of the Basal Eocene" = Nacimiento Formation
• member-level stratigraphic resolution
Environment/lithology: terrestrial; lithology not reported
Size class: macrofossils
Collected by David Baldwin in 1883; reposited in the AMNH
• collected for E. D. Cope
Primary reference: O. P. Hay. 1907. Descriptions of seven new species of turtles from the Tertiary of the United States. Bulletin of the American Museum of Natural History 23(34):847-863 [J. Alroy/J. Alroy]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 74549: authorized by John Alroy, entered by John Alroy on 12.08.2007, edited by Jonathan Marcot
Creative Commons license: CC BY (attribution)
Taxonomic list
Reptilia | |
"Aspideretes singularis n. sp." = Trionyx singularis
"Aspideretes singularis n. sp." = Trionyx singularis Hay 1907 softshell turtle | |
Mammalia | |
Arctocyon ferox Cope 1883 condylarth said to be collected by Baldwin in 1882, so possibly a different locality
|