SMP Loc. 363a (Cretaceous of the United States)

Where: San Juan County, New Mexico (36.3° N, 108.1° W: paleocoordinates 43.6° N, 79.4° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: De-na-zin Member (Kirtland Formation), Late/Upper Campanian (83.5 - 70.6 Ma)

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; siltstone

Size class: macrofossils

Primary reference: S. G. Lucas and R. M. Sullivan. 2000. The sauropod dinosaur Alamosaurus from the Upper Cretaceous of the San Juan Basin, New Mexico. New Mexico Museum of Natural History and Science Bulletin 17:147-156 [J. Head/J. Head/M. Carrano]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 47818: authorized by Jason Head, entered by Jason Head on 02.03.2005, edited by Matthew Carrano and David Nicholson

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Reptilia
 Testudines - Trionychidae
Trionychidae indet.2
Trionychidae indet.2 Gray 1825 softshell turtle
SMP VP-2541 carapace fragment
 Crocodylia - Alligatoridae
Brachychampsa montana1
Brachychampsa montana1 Gilmore 1911 crocodilian
SMP VP-1547
 Ornithischia - Hadrosauridae
Hadrosauridae indet.3, cf. Kritosaurus sp.3, Kritosaurus navajovius3
Hadrosauridae indet.3 Cope 1869 hadrosaurid
SMP VP-1161, 1263, 1468 (L femur)
cf. Kritosaurus sp.3 Brown 1910 hadrosaurine
SMP VP-1268
Kritosaurus navajovius3 Brown 1910 hadrosaurine
SMP VP-1267
 Saurischia - Saltasauridae
Alamosaurus sanjuanensis
Alamosaurus sanjuanensis Gilmore 1922 saltasaurine
SMP VP-1097 (tooth)
1Lucas et al. 2006; 2Sullivan et al. 2012; 3Sullivan and Lucas 2014