La Esperanza, Ocampo (Cretaceous to of Mexico)

Where: Coahuila, Mexico (28.6° N, 103.4° W: paleocoordinates 35.1° N, 77.1° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Aguja Formation, Middle Campanian to Middle Campanian (83.5 - 70.6 Ma)

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Collected by Montellano-Ballesteros

Primary reference: A. A. Ramírez-Velasco, R. Hernández-Rivera, and R. Servin-Pichardo. 2014. The hadrosaurian record from Mexico. In D. A. Eberth & D. C. Evans (ed.), Hadrosaurs 340-360 [M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 171006: authorized by Matthew Carrano, entered by Matthew Carrano on 30.06.2015

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Ornithischia - Hadrosauridae
Hadrosauridae indet. Cope 1869 hadrosaurid
CPC 789, tibia with bite marks; caudal (IGM)
 Theropoda - Tyrannosauridae
Tyrannosauridae indet. Osborn 1906 tyrannosaurid
bite marks on CPC 789