La Salada: Early/Lower Campanian, Mexico
collected 2009

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia - Ceratopsidae
Ceratopsidae indet. Marsh 1888
1 specimen
CPC 274
    = Centrosaurinae indet. Lambe 1915
Rivera-Sylva and Carpenter 2014
    = Yehuecauhceratops mudei n. gen., n. sp. Rivera-Sylva et al. 2017
Rivera-Sylva et al. 2017
Reptilia - Pachycephalosauridae
Pachycephalosauridae indet. Sternberg 1945
Rivera-Sylva and Carpenter 2014 1 specimen
CPC 538, tooth
Reptilia - Hadrosauridae
Hadrosauridae indet. Cope 1869
3 specimens
With a bitemark applied by a Deinosuchus; 7 caudals, humerus, metatarsals; CPC-308, 309, 789/1
Reptilia - Tyrannosauridae
Tyrannosaurinae indet. Matthew and Brown 1922
Rivera-Sylva et al. 2012 1 specimen
bite marks on 789/1 (hadrosaur left tibia)
Reptilia
Deinosuchus riograndensis (Colbert and Bird 1954)
2 individuals
original and current combination Phobosuchus riograndensis
At least 2 individuals: six teeth and tooth fragments (CPC 484/1; CPC 484/2; CPC 484/3; CPC 484/4; CPC 484/5; CPC 484/6), a sixth or seventh cervical vertebra (CPC 484/7), a caudal vertebra (CPC 484/8), an accessory cervical left osteoderm (CPC 484/9), and a ventral osteoderm (CPC 484/10)
Reptilia - Testudines - Trionychidae
Trionychidae indet. Gray 1825
osteoderms
Actinopteri - Lepisosteiformes - Lepisosteidae
Lepisosteidae indet. Cuvier 1825
scales
Heterohelicidae
Heterohelix sp. Ehrenberg 1843
see common names

Geography
Country:Mexico State/province:Coahuila County:Ocampo
Coordinates: 28.8° North, 103.3° West (view map)
Paleocoordinates:35.3° North, 76.9° West
Basis of coordinate:estimated from map
Geographic resolution:small collection
Time
Period:Cretaceous Epoch:Late/Upper Cretaceous
Stage:Campanian 10 m.y. bin:Cretaceous 7
Key time interval:Early/Lower Campanian
Age range of interval:83.60000 - 72.10000 m.y. ago
Stratigraphy
Formation:Aguja
Stratigraphic resolution:bed
Stratigraphy comments: Lower member of the Aguja Formation
Lithology and environment
Primary lithology: not reported
Environment:delta plain
Geology comments: A deltaic river system with frequent ingressions of sea water, less than
ten kilometres from shore
Taphonomy
Modes of preservation:body
Degree of concentration:-bonebed
Size of fossils:macrofossils,mesofossils
Feeding/predation traces:tooth marks
Temporal resolution:snapshot
Collection methods and comments
Collection methods:bulk,surface (in situ),sieve,field collection
Reason for describing collection:taxonomic analysis
Collection dates:2009
Metadata
Also known as:Ocampo
Database number:113768
Authorizer:P. Mannion, G. Lloyd, M. Carrano Enterer:P. Mannion, M. Carrano, G. Lloyd
Modifier:M. Carrano Research group:vertebrate
Created:2011-08-05 00:01:38 Last modified:2022-12-09 14:09:36
Access level:the public Released:2011-08-05 00:01:38
Creative Commons license:CC BY
Reference information

Primary reference:

36952. H. E. Rivera-Sylva, E. Frey, J. R. Guzmán-Gutiérrez, F. Palomino-Sánchez, and W. Stinnesbeck. 2011. A Deinosuchus riograndensis (Eusuchia: Alligatoroidea) from Coahuila, North Mexico. Revista Mexicana de Ciencias Geológicas 28(2):267-274 [P. Mannion/P. Mannion]

Secondary references:

82052 G. Carbot-Chanona. 2014. Overview of Mesozoic crocodyliforms from Mexico. In H. E. Rivera-Sylva, K. Carpenter, & E. Frey (eds.), Dinosaurs and Other Reptiles from the Mesozoic of Mexico 110-125 [M. Carrano/M. Carrano]
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]
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]
67324 H. E. Rivera-Sylva, E. Frey, W. Stinnesbeckc, J. R. Guzmán-Gutiérrez, and A. H. González-González. 2017. Mexican ceratopsids: considerations on their diversity and biogeography. Journal of South American Earth Sciences 75:66-73 [G. Lloyd/G. Lloyd]
83339 H. E. Rivera-Sylva, D. W. E. Hone, and P. Dodson. 2012. Bite marks of a large theropod on an hadrosaur limb bone from Coahuila, Mexico. Boletín de la Sociedad Geológica Mexicana 64(1):157-161 [M. Carrano/M. Carrano]