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The Cerro del Pueblo Formation is a geological formation in Coahuila, Mexico whose strata date back to the Late Cretaceous. Dinosaur remains are among the fossils that have been recovered from the formation.[1] The formation is believed to correlate with the Baculites reesidesi and Baculites jenseni ammonite zones, which dates it to 73.63-72.74 Ma.[2]
Supraorbital horncores, an orbit, dorsal vertebra, indeterminate cranial fragments, limb bones, and unspecified postcranial elements pertaining to juvenile specimens.[3]
Indeterminate chasmosaurine remains belonging to juvenile specimens.[3]
A rostral, premaxilla, maxilla, nasals, supraorbital horncores, parietosquamosal fragment, predentary, and dentaries of an adult specimen and predentary, and dentary of a juvenile specimen, metacarpals, metatarsals, dorsal vertebrae, cervical vertebrae, caudal vertebrae, ulna and tibia.[4][3]
A chasmosaurine ceratopsid represented by an adult and juvenile specimen.[4][3]
Holotype specimen is chimeric as it consists of multiple individuals. Some material from the holotype specimen is assigned to Lambeosaurinae indet. and Saurolophinae indet..[7]
3 tibia fragments, distal, proximal and medial shaft elements respectively.[11]
An oviraptorosaur. Two different morphotypes are suggested, a small one, less than a meter in length. And a big morphotype, almost reaching two meters.
A neural arch, complete and fragmented pedal and manual phalanxes, manual unguals, unspecified vertebra, complete and fragmented caudal vertebrae, chevron, proximal end of femur, and unidentified bone fragments.[3]
Anasazisaurus is a genus of saurolophine hadrosaurid ("duckbill") ornithopod dinosaur that lived about 74 million years ago, in the Late Cretaceous Period. It was found in the Farmington Member of the Kirtland Formation, in the San Juan Basin of New Mexico, United States. Only a partial skull has been found to date. It was first described as a specimen of Kritosaurus by Jack Horner, and has been intertwined with Kritosaurus since its description. It is known for its short nasal crest, which stuck out above and between its eyes for a short distance.
The Oldman Formation is a stratigraphic unit of Late Cretaceous age that underlies much of southern Alberta, Canada. It consists primarily of sandstones that were deposited in fluvial channel and floodplain environments. It was named for exposures along the Oldman River between its confluence with the St. Mary River and the city of Lethbridge, and it is known primarily for its dinosaur remains and other fossils.
Prenoceratops, is a genus of herbivorous ceratopsian dinosaur from the Late Cretaceous Period. It was a relatively small dinosaur, reaching 1.3 m (4.3 ft) in length and 20 kg (44 lb) in body mass. Its fossils have been found in the upper Two Medicine Formation in the present-day U.S. state of Montana, in Campanian age rock layers that have been dated to 74.3 million years ago. Fossils were also found in the Oldman Formation in the modern day Canadian province of Alberta, dating to around 77 million years ago.
The Kirtland Formation is a sedimentary geological formation.
The Horseshoe Canyon Formation is a stratigraphic unit of the Western Canada Sedimentary Basin in southwestern Alberta. It takes its name from Horseshoe Canyon, an area of badlands near Drumheller.
Velafrons is a genus of lambeosaurine hadrosaurid dinosaur from the Late Cretaceous of Mexico. It is known from a mostly complete skull and partial skeleton of a juvenile individual, with a bony crest on the forehead. Its fossils were found in the late Campanian-age Cerro del Pueblo Formation, near Rincon Colorado, Coahuila, Mexico. The type specimen is CPC-59, and the type species is V. coahuilensis.
The Wahweap Formation of the Grand Staircase–Escalante National Monument is a geological formation in southern Utah and northern Arizona, around the Lake Powell region, whose strata date back to the Late Cretaceous. Dinosaur remains are among the fossils that have been recovered from the formation.
The Aguja Formation is a geological formation in North America, exposed in Texas, United States and Chihuahua and Coahuila in Mexico, whose strata date back to the Late Cretaceous. Dinosaur remains are among the fossils that have been recovered from the formation. Fossil palms have also been unearthed here.
The El Gallo Formation is a geological formation in Mexico whose strata date back to the Late Cretaceous, Campanian epoch, specifically dated to 75.21 ± 0.07 Ma and 74.55 ± 0.09 Ma. Dinosaur remains are among the fossils that have been recovered from the formation.
Coahuilaceratops is a genus of ceratopsian dinosaur. It is a chasmosaurine ceratopsian which lived during the Late Cretaceous period in what is now southern Coahuila in northern Mexico. It is known from the holotype CPC 276, a partial skeleton of an adult individual which includes several skull elements. Another specimen, CPS 277, may represent a juvenile Coahuilaceratops. All specimens of Coahuilaceratops were collected from a single location in the middle strata of the Cerro del Pueblo Formation, which dates to between 72.5 and 71.4 million years ago.
Mexichelys is an extinct monotypic genus of sea turtle which lived in Mexico during the Cretaceous. The only species is Mexichelys coahuilaensis. Mexichelys was erected in 2010 as a replacement name for Euclastes coahuilaensis, a species named in 2009.
Magnapaulia is a genus of herbivorous lambeosaurine hadrosaurid dinosaurs known from the Latest Cretaceous Baja California, of northwestern Mexico. It contains a single species, Magnapaulia laticaudus. Magnapaulia was first described in 1981 as a possible species of Lambeosaurus by William J. Morris, and was given its own genus in 2012 by Prieto-Márquez and colleagues.
Latirhinus is an extinct genus of lambeosaurine hadrosaurid dinosaur from the Late Cretaceous of Mexico. The type species, Latirhinus uitstlani, was named in 2012 on the basis of a partial skeleton from the Campanian-age Cerro del Pueblo Formation. The specific name uitstlani means "southern" in the Náhuatl language of Mexico, a reference to the species' southern occurrence in the Cretaceous landmass Laramidia.
The Olmos Formation is a geologic formation in Mexico. It preserves fossils of plants, hadrosaurs, ceratopsians, tyrannosaurs and the turtle Palauchelys dating back to the Cretaceous period.
Lindsay E. Zanno is an American vertebrate paleontologist and a leading expert on theropod dinosaurs and Cretaceous paleoecosystems. She is the Head of Paleontology at the North Carolina Museum of Natural Sciences and an Associate Research Professor in the Department of Biological Sciences at North Carolina State University.
The year 2010 in Archosaur paleontology was eventful. Archosaurs include the only living dinosaur group — birds — and the reptile crocodilians, plus all extinct dinosaurs, extinct crocodilian relatives, and pterosaurs. Archosaur palaeontology is the scientific study of those animals, especially as they existed before the Holocene Epoch began about 11,700 years ago. The year 2010 in paleontology included various significant developments regarding archosaurs.
Yehuecauhceratops is a genus of horned centrosaurine ceratopsid dinosaur from the Late Cretaceous of Coahuila, Mexico. It contains a single species, Y. mudei, described from two partial specimens by Rivera-Sylva et al. in 2016 and formally named by Rivera-Sylva et al. in 2017. It was a small centrosaurine with a body length of 3 metres (9.8 ft), making it smaller than Agujaceratops and Coahuilaceratops, the other two ceratopsids in its environment; the three may have been ecologically segregated. A ridge bearing a single roughened projection near the bottom of the squamosal bone, which probably supported a small horn, allows Yehuecauhceratops to be distinguished from other centrosaurines. Its affinities to nasutoceratopsin centrosaurines, such as Avaceratops and Nasutoceratops, are supported by various morphological similarities to the former.
Tlatolophus is a genus of hadrosaurid dinosaur belonging to the tribe Parasaurolophini. The only species is the type species, Tlatolophus galorum.
1 2 3 4 Loewen, M.A., Sampson, S.D., Lund, E.K., Farke, A.A., Aguillón-Martínez, M.C., de Leon, C.A., Rodríguez-de la Rosa, R.A., Getty, M.A., Eberth, D.A., 2010, "Horned Dinosaurs (Ornithischia: Ceratopsidae) from the Upper Cretaceous (Campanian) Cerro del Pueblo Formation, Coahuila, Mexico", In: Michael J. Ryan, Brenda J. Chinnery-Allgeier, and David A. Eberth (eds), New Perspectives on Horned Dinosaurs: The Royal Tyrrell Museum Ceratopsian Symposium, Indiana University Press, 656 pp.
1 2 3 4 Prieto-Márquez, A. (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. 12 (2): 133–175. doi:10.1080/14772019.2013.770417. S2CID84942579.
1 2 3 Prieto-Márquez, Albert; Serrano Brañas, Claudia Inés (2012). "Latirhinus uitstlani, a 'broad-nosed' saurolophine hadrosaurid (Dinosauria, Ornithopoda) from the late Campanian (Cretaceous) of northern Mexico". Historical Biology. 24 (6): 607–619. doi:10.1080/08912963.2012.671311. S2CID128964878.
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J. L. Gudiño Maussán, F. J. Aguilar, and R. Hernández-Rivera. 2018. Aplicación de fotogrametría digital para el registro de las huellas de dinosaurio de la Formación Cerro del Pueblo (Campaniano tardío), Coahuila, México [Application of digital photogrammetry for recording dinosaur footprints of the Cerro del Pueblo Formation (late Campanian), Coahuila, Mexico]. Boletín de la Sociedad Geológica Mexicana 70(2):307-324
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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
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