El Palmar: Late Campanian, Mexico

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia - Hadrosauridae
Ramírez-Velasco and Hernández-Rivera 2015 4 specimens
BENC 1/1-0001, 0006, 0011, 0095
Ramírez-Velasco and Hernández-Rivera 2015 1 specimen
BENC 1/1-0007
Longrich et al. 2024
Fragmentary skull comprising BENC 1/1-007-2, left maxilla, BENC 1/1-007-1, BENC 1/1-007-3 dentary fragments
Ramírez-Velasco and Hernández-Rivera 2015 1 specimen
BENC 1/1-0009
Reptilia - Ankylosauridae
5 specimens
BENC-1/4-0001, 0002, 0003, 0004, 0005
Reptilia - Caenagnathidae
Serrano-Brañas et al. 2022
BENC 1/2-0002
Reptilia - Tyrannosauridae
Rivera-Sylva and Carpenter 2014
tooth fragments, unguals, posterior caudal centrum
Reptilia - Ornithomimidae
Rivera-Sylva and Carpenter 2014 12 specimens
distal L femur, BENC 1/2-0042, 0045, 0053, 0066, 0068–0073, 0077, 0081
Insecta - Blattodea
Serrano-Brañas et al. 2024
traces on bones
Insecta - Coleoptera - Dermestidae
Serrano-Brañas et al. 2024
traces on bones
see common names

Geography
Country:Mexico State/province:Coahuila
Coordinates: 25.6° North, 101.3° West (view map)
Paleocoordinates:34.6° North, 68.1° West (Wright 2013)
Basis of coordinate:stated in text
Geographic resolution:local area
Time
Period: Cretaceous Epoch: Late Cretaceous
Stage: Campanian 10 m.y. bin: Cretaceous 7
Key time interval: Late Campanian
Age range of interval: 83.6 - 72.2 m.y. ago
Stratigraphy
Geological group:Difunta Formation:Cerro del Pueblo
Stratigraphic resolution:group of beds
Lithology and environment
Primary lithology: mudstone
Secondary lithology: sandstone
Includes fossils?Y
Lithology description: formation consists of "mudstone deposits, shell coquinas, and sandstones"
Environment:fluvial-deltaic indet.
Geology comments: "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."
Taphonomy
Modes of preservation:body,trace
Degree of concentration:dispersed
Size of fossils:macrofossils
Preservation of anatomical detail:medium
Disassociated minor elements:some
Fragmentation:occasional
Feeding/predation traces:arthropod boring
Spatial resolution:parautochthonous
Collection methods and comments
Collection methods:field collection
Reason for describing collection:general faunal/floral analysis
Metadata
Also known as:BENC
Database number:68039
Authorizer:M. Carrano, P. Mannion, E. Dunne Enterer:M. Carrano, E. Dunne, P. Mannion
Modifier:M. Carrano Research group:vertebrate
Created:2006-12-28 13:43:09 Last modified:2025-02-22 15:12:02
Access level:the public Released:2006-12-28 13:43:09
Creative Commons license:CC0
Reference information

Primary reference:
19483.ETE 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]

Secondary references:

90562 N. R. Longrich, A. A. Ramirez Velasco, J. Kirkland, A. E. Bermúdez Torres, and C. I. Serrano-Brañas. 2024. Coahuilasaurus lipani, a New Kritosaurin Hadrosaurid from the Upper Campanian Cerro Del Pueblo Formation, Northern Mexico. Diversity 16(9):531 [E. Dunne/E. Dunne]
55641 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]
82620 Á A. Ramírez-Velasco and R. Hernández-Rivera. 2015. Diversity of Late Cretaceous dinosaurs from Mexico. Boletín Geológico y Minero 126(1):63-108 [M. Carrano/M. Carrano]
82004 H. E. Rivera-Sylva and K. Carpenter. 2014. Mexican saurischian dinosaurs. In H. E. Rivera-Sylva, K. Carpenter, & E. Frey (eds.), Dinosaurs and Other Reptiles from the Mesozoic of Mexico 143-155 [M. Carrano/M. Carrano]
82030 H. E. Rivera-Sylva and K. Carpenter. 2014. The ornithischian dinosaurs of Mexico. In H. E. Rivera-Sylva, K. Carpenter, & E. Frey (eds.), Dinosaurs and Other Reptiles from the Mesozoic of Mexico 156-180 [M. Carrano/M. Carrano]
85500 C. I. Serrano-Brañas, B. Espinosa-Chávez, S. A. Maccracken, D. Barrera Guevara, and E. Torres-Rodríguez. 2022. First record of caenagnathid dinosaurs (Theropoda, Oviraptorosauria) from the Cerro del Pueblo Formation (Campanian, Upper Cretaceous), Coahuila, Mexico. Journal of South American Earth Sciences 119:104046 [P. Mannion/P. Mannion]
89852 C. I. Serrano-Brañas, B. Espinosa-Chávez, S. A. Maccracken and E. Torres-Rodríguez. 2024. The Cerro del Pueblo Formation, Unlocking the Environmental Data of an Extraordinary Ancient Ecosystem from Mexico. In R. G. a. E. Jiménez-Hidalgo (ed.), Springer Geology 405-426 [M. Carrano/M. Carrano]