Ejido Presa de San Antonio (Coah 14): Late/Upper Campanian, Mexico
collected by UNAM, R. López 1980, 1986, 1988–1989

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Tricostatocarpon silvapinedae n. gen., n. sp.
Fruits
Striatornata sanantoniensis seed/fruit
Gastropoda indet. Cuvier 1797
Rivera-Sylva and Carpenter 2014
Bivalvia
Bivalvia indet. Linnaeus 1758
Rivera-Sylva and Carpenter 2014
Insecta - Odonata
Odonata indet. Fabricius 1793
Rivera-Sylva and Carpenter 2014 1 specimen
insect wing
Reptilia - Testudines - Kinosternoidea
cf. Hoplochelys sp. Hay 1908
Rodriguez-de la Rosa and Cevallos-Ferriz 1998
Reptilia - Testudines - Trionychidae
Trionychidae indet. Gray 1825
Rodriguez-de la Rosa and Cevallos-Ferriz 1998
Reptilia - Ceratopsidae
Ceratopsidae indet. Marsh 1888
Ramírez-Velasco and Hernández-Rivera 2015 1 specimen
sacral vertebrae, two proximal end femora and proximal end ulna, IGM-MG
Ceratopsidae indet. Marsh 1888
Loewen et al. 2010 1 specimen
CPC 278
    = Chasmosaurinae indet. Lambe 1915
Ramírez-Velasco and Hernández-Rivera 2015
Reptilia - Hadrosauridae
Hadrosauridae indet. Cope 1869
Ramírez-Velasco et al. 2014 2 specimens
tooth, incomplete maxilla (Coah 14)
Kritosaurini indet. Lapparent and Lavocat 1955
Serrano Brañas 2006 1 individual
Coah 14-2/1
    = Saurolophinae indet. Brown 1914
Ramírez-Velasco and Hernández-Rivera 2015
IGM 6685
Kritosaurus sp. Brown 1910
Serrano Brañas 2006 1 specimen
Coah 14-3/1
    = Saurolophinae indet. Brown 1914
Ramírez-Velasco and Hernández-Rivera 2015
Kritosaurus sp. Brown 1910
Hernández-Rivera 1997 1 individual
field no. SPA-88-9 ("Isauria"; Coah 14-1/1; IGM 6583)
    = Gryposaurus sp. Lambe 1914
Serrano-Brañas et al. 2006
"Isauria"
    = Latirhinus uitstlani n. gen., n. sp. Prieto-Márquez and Serrano Brañas 2012
Prieto-Márquez and Serrano Brañas 2012
= IGM 6583, fragmentary skeleton incl. partial R nasal, 10 dorsal and 14 caudal vertebrae, R coracoid, L scapula, both humeri & ulnae, R metacarpals III & IV, preacetabular process of R ilium, iliac peduncle of R ischium, both femora, tibiae, & fibulae, L astragalus, R & L metatarsals III & IV, various proximal phalanges of R pes
Lambeosaurinae indet. Parks 1923
Hernández-Rivera 1997 5 specimens
Coah 14-1/3-6
    = Corythosaurini indet. Glut 1997
Serrano Brañas 2006
Reptilia - Theropoda
Theropoda indet. Marsh 1881
Rodriguez-de la Rosa and Cevallos-Ferriz 1998
see common names

Geography
Country:Mexico State/province:Coahuila
Coordinates: 25.5° North, 101.7° West (view map)
Paleocoordinates:31.7° North, 76.3° West
Basis of coordinate:stated in text
Geographic resolution:outcrop
Time
Period:Cretaceous Epoch:Late/Upper Cretaceous
Stage:Campanian 10 m.y. bin:Cretaceous 7
*Period:Late/Upper Cretaceous *Epoch:Senonian
*International age/stage:Late/Upper Campanian
Key time interval:Late/Upper Campanian
Age range of interval:83.50000 - 70.60000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Geological group:Difunta Formation:Cerro del Pueblo
Stratigraphic resolution:group of beds
Stratigraphy comments: middle part of formation
Lithology and environment
Primary lithology: mudstone
Includes fossils?Y
Environment:terrestrial indet.
Taphonomy
Modes of preservation:body,soft parts
Size of fossils:macrofossils
Preservation of anatomical detail:medium
Associated major elements:some
Disassociated major elements:some
Disassociated minor elements:some
Fragmentation:frequent
Collection methods and comments
Collection methods:selective quarrying,surface (float),surface (in situ),mechanical,field collection
Reason for describing collection:taxonomic analysis
Collectors:UNAM, R. López Collection dates:1980, 1986, 1988–1989
Metadata
Also known as:La Presa; SPA-88-9 quarry, Ejido Presa San Antonio
Database number:24258
Authorizer:J. Alroy, M. Carrano, H. Sims, H. Wang Enterer:J. Alroy, M. Carrano, J. Cassara, M. Arakaki
Modifier:M. Carrano Research group:vertebrate
Created:2002-08-03 15:37:09 Last modified:2022-09-19 16:28:24
Access level:the public Released:2002-08-03 15:37:09
Creative Commons license:CC BY
Reference information

Primary reference:

8686. R. A. Rodriguez-de la Rosa and S. R. S. Cevallos-Ferriz. 1994. Upper Cretaceous Zingiberalean fruits with in situ seeds from Southeastern Coahuila, Mexico. International Journal of Plant Sciences 155(6):786-805 [H. Wang/M. Arakaki/J. Cassara]

Secondary references:

81945 J. R. Guzmán-Gutiérrez and H. E. Rivera-Sylva. 2014. History of the discoveries of dinosaurs and Mesozoic reptiles in Mexico. In H. E. Rivera-Sylva, K. Carpenter, & E. Frey (eds.), Dinosaurs and Other Reptiles from the Mesozoic of Mexico 1-12 [M. Carrano/M. Carrano]
61988 R. Hernández-Rivera. 1997. Mexican dinosaurs. In P. J. Currie & K. Padian (ed.), Encyclopedia of Dinosaurs 433-437 [M. Carrano/M. Carrano]
82623 J. I. Kirkland, R. Hernández Rivera, M. C. Aguillón Martínez, C. R. Delgado Jesús, R. Gómez Nuñez and I. Vallejo. 2000. The Late Cretaceous Difunta Group of the Parras Basin, Coahuila, Mexico, and its vertebrate fauna. Society of Vertebrate Paleontology 60nd Annual Meeting, Guide Book of the Field Trips. Avances en Investigación, Special Publication 3:133-172 [M. Carrano/M. Carrano]
25969ETE J. I. Kirkland, R. Hernández-Rivera, T. A. Gates, G. S. Paul, S. J. Nesbitt, C. I. Serrano-Brañas, and J. P. Garcia-de Garza. 2006. Large hadrosaurine dinosaurs from the latest Campanian of Coahuila, Mexico. In S. G. Lucas and R. M. Sullivan (eds.), Late Cretaceous Vertebrates from the Western Interior. New Mexico Museum of Natural History and Science Bulletin 35:299-315 [M. Carrano/M. Carrano]
33417ETE M. A. Loewen, S. D. Sampson, E. K. Lund, A. A. Farke, M. C. Aguillón-Martínez, C. A. Leon, R. A. Rodríguez-de Rosa, M. A. Getty, and D. A. Eberth. 2010. Horned dinosaurs (Ornithischia: Ceratopsia) from the Upper Cretaceous (Campanian) Cerro del Pueblo Formation, Coahuila, Mexico. In M. J. Ryan, B. J. Chinnery-Allgeier, D. A. Eberth (eds.), New Perspectives on Horned Dinosaurs: The Royal Tyrrell Museum Ceratopsian Symposium. Indiana University Press, Bloomington 99-116 [M. Carrano/M. Carrano]
46756 A. Prieto-Marquez. 2013. Skeletal morphology of Kritosaurus navajovius (Dinosauria: Hadrosauridae) from the Late Cretaceous of the North American south-west, with an evaluation of the phylogenetic systematics and biogeography of Kritosaurini. Journal of Systematic Palaeontology [P. Mannion/J. Tennant/M. Carrano]
43677 A. Prieto-Márquez and C. I. Serrano Brañas. 2012. Latirhinus uitstlani, a ‘broad-nosed’ saurolophine hadrosaurid (Dinosauria, Ornithopoda) from the late Campanian (Cretaceous) of northern Mexico. Historical Biology 24(6):607-619 [R. Benson/R. Benson]
77004 A. A. Ramírez-Velasco, L. Espinosa-Arrubarrena, and J. Alvarado-Ortega. 2021. Review of the taxonomic affinities of Latirhinus uitstlani, an emblematic Mexican hadrosaurid. Journal of South American Earth Sciences 103391 [P. Mannion/P. Mannion]
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]
77161 H. E. Rivera-Sylva, R. A. Reyna-Hernández, L. E. Silva-Martínez and J. R. Guzmán-Gutiérrez. 2021. A large hadrosaur from Presa San Antonio, Cerro del Pueblo Formation, Coahuila, Mexico. Acta Palaeontologica Polonica 66 [M. Carrano/M. Carrano]
694 R. A. Rodriguez-de la Rosa and S. R. S. Cevallos-Ferriz. 1998. Vertebrates of the El Pelillal locality (Campanian, Cerro del Pueblo Formation), southeastern Coahuila, Mexico. Journal of Vertebrate Paleontology 18(4):751-764 [J. Alroy/J. Alroy/J. Alroy]
82622 C. I. Serrano Brañas. 2006. Descripción de los Dinosaurios Pertenecientes a la Familia Hadrosauridae del Cretácico Superior de Coahuila, México [Description of the Dinosaurs Pertaining to the Family Hadrosauridae from the Upper Cretaceous of Coahuila, Mexico]. 1-173 [M. Carrano/M. Carrano/M. Uhen]
25966ETE C. I. Serrano-Brañas, R. Hernández-Rivera, E. Torres-Rodríguez and B. Espinosa Chávez. 2006. A natural hadrosaurid endocast from the Cerro del Pueblo Formation (Upper Cretaceous) of Coahuila, Mexico. In S. G. Lucas and R. M. Sullivan (eds.), Late Cretaceous Vertebrates from the Western Interior. New Mexico Museum of Natural History and Science Bulletin 35:317-321 [M. Carrano/M. Carrano]