El Palmar (Cretaceous of Mexico)

Also known as BENC

Where: Coahuila, Mexico (25.6° N, 101.3° W: paleocoordinates 31.7° N, 75.9° W)

• coordinate stated in text

• local area-level geographic resolution

When: Cerro del Pueblo Formation (Difunta Group), Late/Upper Campanian (83.5 - 70.6 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: fluvial-deltaic; mudstone and sandstone

• "deposited on a low-gradient and broadly homogenous coastal plain with transgressive-regressive episodes. This environment was a plant-rich wetland, with channels, lakes, swamps, coastal lagoons, deltaic lakes, and bay deposits."
• formation consists of "mudstone deposits, shell coquinas, and sandstones"

Size class: macrofossils

Primary reference: H. E. Rivera-Sylva and B. Espinosa-Chávez. 2006. Ankylosaurid (Dinosauria: Thyreophora) osteoderms from the Upper Cretaceous Cerro de Pueblo Formation of Coahuila, Mexico. Carnets de Géologie/Notebooks on Geology Letter(2006/02):1-5 [M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 68039: authorized by Matthew Carrano, entered by Matthew Carrano on 28.12.2006, edited by Philip Mannion

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Reptilia
 Theropoda - Caenagnathidae
Caenagnathidae indet.3
Caenagnathidae indet.3 Sternberg 1940 maniraptoran
BENC 1/2-0002
 Theropoda - Tyrannosauridae
Tyrannosauridae indet.2
Tyrannosauridae indet.2 Osborn 1906 tyrannosaurid
tooth fragments, unguals, posterior caudal centrum
 Theropoda - Ornithomimidae
Ornithomimidae indet.2
Ornithomimidae indet.2 Marsh 1890 ornithomimid
distal L femur, BENC 1/2-0042, 0045, 0053, 0066, 0068–0073, 0077, 0081
 Ornithischia - Hadrosauridae
Hadrosauridae indet.1, Lambeosaurinae indet.1, Saurolophinae indet.1
Hadrosauridae indet.1 Cope 1869 hadrosaurid
BENC 1/1-0001, 0006, 0011
Lambeosaurinae indet.1 Parks 1923 lambeosaurine
BENC 1/1-0009
Saurolophinae indet.1 Brown 1914 hadrosaurid
BENC 1/1-0007
 Ornithischia - Ankylosauridae
Ankylosauridae indet.
Ankylosauridae indet. Brown 1908 ankylosaurid
BENC-1/4-0001, 0002, 0003, 0004, 0005
1Ramírez-Velasco and Hernández-Rivera 2015; 2Rivera-Sylva and Carpenter 2014; 3Serrano-Brañas et al. 2022