Sargent Ranch, SMP Loc. 461 (Cretaceous of the United States)

Also known as Target 9

Where: San Juan County, New Mexico (36.1° N, 107.8° W: paleocoordinates 43.3° N, 79.2° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Hunter Wash Member (Kirtland Formation), Late/Upper Campanian (83.5 - 70.6 Ma)

• member-level stratigraphic resolution

Environment/lithology: terrestrial; lithified shale

Size class: macrofossils

Primary reference: S. E. Jasinski and R. M. Sullivan. 2011. Re-evaluation of pachycephalosaurids from the Fruitland-Kirtland transition (Kirtlandian, late Campanian), San Juan Basin, New Mexico, with a description of a new species of Stegoceras and a reassessment of Texacephale langstoni. In R. M. Sullivan, S. G. Lucas, & J. A. Spielmann (eds.), Fossil Record 3. New Mexico Museum of Natural History and Science Bulletin 53:202-215 [G. Lloyd/G. Lloyd/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 144520: authorized by Graeme Lloyd, entered by Graeme Lloyd on 10.05.2013, edited by David Nicholson and Matthew Carrano

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Testudines -
Testudines indet.1 Batsch 1788 turtle
SMP VP-3377 incomplete costal & two carapace fragments, SMP VP-3388 two carapace fragments, SMP VP-3373 ?carapace/plastron fragments
 Testudines - Baenidae
? Baenidae indet.1 Cope 1882 turtle
SMP VP-3389 marginal/carapace fragment
 Neornithischia - Pachycephalosauridae
Stegoceras novomexicanum Jasinski and Sullivan 2011 ornithischian
SMP VP-2970
 Neornithischia - Hadrosauridae
Hadrosauridae indet.2 Cope 1869 hadrosaurid
SMP VP-2793