Rojas 2 (IGM Loc. 312): Late Campanian, Mexico
collected by J. Rojas 1977, 1980
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Reptilia
- Ceratopsidae
|
||||||||||
| Ramírez-Velasco and Hernández-Rivera 2015 | 1 specimen | |||||||||
| metacarpal (ICM) | ||||||||||
|
Reptilia
- Hadrosauridae
|
||||||||||
| 43 specimens | ||||||||||
| vertebrae, ulnae, jaw fragments, pedal elements, humerus, skin impressions (IGLUNAM) | ||||||||||
|
Reptilia
|
||||||||||
| Ramírez-Velasco and Hernández-Rivera 2015 | ||||||||||
| long bone fragments (IGM) | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Mexico | State/province: | Coahuila |
| Coordinates: | 25.5° North, 101.4° West (view map) | ||
| Paleocoordinates: | 34.6° North, 68.2° West (Wright 2013) | ||
| Basis of coordinate: | based on nearby landmark | ||
| Geographic resolution: | outcrop |
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: | not reported |
| Environment: | terrestrial indet. |
Taphonomy
| Modes of preservation: | body,mold/impression,soft parts |
| Size of fossils: | macrofossils |
| Fragmentation: | occasional |
Collection methods and comments
| Collection methods: | survey of museum collection | ||
| Reason for describing collection: | general faunal/floral analysis | ||
| Collectors: | J. Rojas | Collection dates: | 1977, 1980 |
Metadata
| Also known as: | Rojas II, General Cepeda | ||
| Database number: | 171003 | ||
| Authorizer: | M. Carrano | Enterer: | M. Carrano |
| Modifier: | M. Carrano | Research group: | vertebrate |
| Created: | 2015-06-30 13:38:51 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2015-06-30 13:38:51 |
| Creative Commons license: | CC0 | ||
Reference information
Primary reference:
| 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] |
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] | |
| 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] |