Cañon El Barril (SEPCP-15): Late Maastrichtian, Mexico
collected by C. R. D. de Jesús 1993
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Chondrichthyes
- Rajiformes
- Sclerorhynchidae
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Schizorhiza stromeri
Weiler 1930
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Kirkland and Aguillón-Martínez 2002 | 1 specimen | ||||||||
| SEPCPV-15/302 | ||||||||||
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Chondrichthyes
- Lamniformes
- Mitsukurinidae
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Scapanorhynchus texanus
(Roemer 1852)
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Chondrichthyes
- Lamniformes
- Pseudocoracidae
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Pseudocorax sp.
Priem 1897
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Chondrichthyes
- Lamniformes
- Serratolamnidae
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| see common names | ||||||||||
Geography
| Country: | Mexico | State/province: | Coahuila |
| Coordinates: | 25.9° North, 101.1° West (view map) | ||
| Paleocoordinates: | 36.6° North, 71.2° West (Wright 2013) | ||
| Basis of coordinate: | based on nearby landmark | ||
| Geographic resolution: | small collection |
Time
| Period: | Cretaceous | Epoch: | Late Cretaceous |
| Stage: | Maastrichtian | 10 m.y. bin: | Cretaceous 8 |
| Key time interval: | Late Maastrichtian | ||
| Age range of interval: | 72.2 - 66 m.y. ago |
Stratigraphy
| Geological group: | Difunta | Formation: | Rancho Nuevo | ||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: basal unit of formation | |||||
Lithology and environment
| Primary lithology: | calcareous sandstone |
| Includes fossils? | Y |
| Environment: | terrestrial indet. |
Taphonomy
| Modes of preservation: | body |
| Degree of concentration: | dispersed |
| Size of fossils: | mesofossils |
| Disassociated major elements: | all |
| Temporal resolution: | snapshot |
| Spatial resolution: | parautochthonous |
Collection methods and comments
| Collection methods: | surface (float),field collection | ||
| Reason for describing collection: | taxonomic analysis | ||
| Collectors: | C. R. D. de Jesús | Collection dates: | 1993 |
Metadata
| Database number: | 79606 | ||
| Authorizer: | M. Carrano | Enterer: | M. Carrano |
| Modifier: | M. Carrano | Research group: | vertebrate |
| Created: | 2008-03-14 14:20:59 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2008-03-14 14:20:59 |
| Creative Commons license: | CC0 |
Reference information
Primary reference:
| 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] |
Secondary references:
| 26232 | ETE | J. I. Kirkland and M. C. Aguillón-Martínez. 2002. Schizorhiza: a unique sawfish paradigm from the Difunta Group, Coahuila, Mexico. Revista Mexicana de Ciencias Geológicas 19(1):16-24 [M. Carrano/M. Carrano] |