Sierra de Buñuelas, near Gomez Farias: Early/Lower Tithonian, Mexico
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Reptilia
- Plesiosauria
- Pliosauridae
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Pliosauridae indet.
Seeley 1874
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Buchy et al. 2006 | 2 specimens | ||||||||
| Incomplete skeleton (CEP1843) and isolated cervical centrum (CEP1850) | ||||||||||
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Reptilia
- Plesiosauria
- Elasmosauridae
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Elasmosauridae indet.
Cope 1869
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Buchy et al. 2006 | |||||||||
| Numerous isolated vertebrae | ||||||||||
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Reptilia
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Thalattosuchia indet.
(Fraas 1901)
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Buchy et al. 2006 | 4 specimens | ||||||||
| Partial rostrum (CEP1841); numerous isolated vertebrae and postcranial elements (e.g. CEP1810, 1816, 1855) | ||||||||||
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Reptilia
- Metriorhynchidae
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Geosaurus saltillense n. sp.
Buchy et al. 2006
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1 individual | |||||||||
| recombined as Cricosaurus saltillensis | ||||||||||
| MUDE CEP1823, holotype poorly preserved skull, lacking snout, and postcranium | ||||||||||
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cf. Metriorhynchus sp.
von Meyer 1830
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Buchy et al. 2006 | 3 specimens | ||||||||
| Partial to subcomplete skulls and postcranium (CEP1831, 1856, 1857); isolated teeth | ||||||||||
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Reptilia
- Ophthalmosauridae
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Ophthalmosauridae indet.
Andrews 1910
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Buchy et al. 2006 | 7 specimens | ||||||||
| Numerous isolated vertebrae, including indicating very large individuals (e.g. CEP1811, 1813, 1818, 1819, 1822, 1826); partial postcrania (e.g. CEP1836) | ||||||||||
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Ophthalmosaurus icenicus
Seeley 1874
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Buchy et al. 2006 | 1 specimen | ||||||||
| Skull and mandible and associated partial postcranium (CEP1876) | ||||||||||
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Actinopteri
- Aspidorhynchiformes
- Aspidorhynchidae
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Aspidorhynchidae indet.
Bleeker 1859
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Buchy et al. 2006 | 1 specimen | ||||||||
| Mandible (CEP1864) | ||||||||||
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Actinopteri
- Pachycormiformes
- Pachycormidae
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Pachycormidae indet.
Woodward 1895
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Buchy et al. 2006 | 1 specimen | ||||||||
| Mandible and postcranium (CEP1840) | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Mexico | State/province: | Coahuila |
| Coordinates: | 25.0° North, 101.0° West (view map) | ||
| Paleocoordinates: | 20.7° North, 52.3° West | ||
| Basis of coordinate: | based on nearby landmark | ||
| Geographic resolution: | small collection |
Time
| Period: | Jurassic | Epoch: | Late/Upper Jurassic |
| Stage: | Tithonian | 10 m.y. bin: | Jurassic 6 |
| Key time interval: | Early/Lower Tithonian | ||
| Age range of interval: | 149.20000 - 146.30000 m.y. ago |
Stratigraphy
| Formation: | La Caja | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: "Early Tithonian (Upper Jurassic) section of the La Caja Fm." | |||||
Lithology and environment
| Primary lithology: | phosphatic silty "shale" |
| Includes fossils? | Y |
| Environment: | offshore |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
| Preservation of anatomical detail: | medium |
| Abundance in sediment: | rare |
| Fragmentation: | frequent |
| Spatial resolution: | parautochthonous |
Collection methods and comments
| Collection size: | 1 individuals |
| Reason for describing collection: | general faunal/floral analysis |
Metadata
| Database number: | 104859 | ||
| Authorizer: | M. Carrano, P. Mannion | Enterer: | H. Street, J. Tennant |
| Modifier: | M. Carrano | Research group: | vertebrate |
| Created: | 2011-02-11 06:48:58 | Last modified: | 2022-07-01 12:29:12 |
| Access level: | the public | Released: | 2011-02-11 06:48:58 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 35104. | M.-C. Buchy, P. Vignaud, E. Frey, W. Stinnesbeck, and A. H. G. Gonzalez. 2006. A new thalattosuchian crocodyliform from the Tithonian (Upper Jurassic) of northeastern Mexico. Comptes Rendus Palevol 5:785-794 [M. Carrano/H. Street/H. Street] |
Secondary references:
| 46345 | M.-C. Buchy, W. Stinnesbeck, and A. H. Gonzalez Gonzalez. 2006. A new Tithonian (Upper Jurassic) marine vertebrate concentration Lagerstätte in north-eastern Mexico. 4th Annual Meeting of the European Association of Vertebrate Palaeontologists (Hantkeniana) 5:17-19 [P. Mannion/J. Tennant] | |
| 46441 | M.-C. Buchy, P. Vignaud, E. D. Frey, W. Stinnesbecj, and A. H. Gonzalez Gonzalez. 2005. New occurrence of the genus Geosaurus(Thalattosuchia, Crocodyliformes) in the Tithonian (Upper Jurassic) of Mexico. Kaupia; Current Research in Vertebrate Palaeontology 3rd Annual Meeting of the European Association of Vertebrate Palaeontologists (EAVP) 14:72 [P. Mannion/J. Tennant] | |
| 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] | |
| 82056 | E. Frey and W. Stinnesbeck. 2014. Mexican ichthyosaurs. In H. E. Rivera-Sylva, K. Carpenter, & E. Frey (eds.), Dinosaurs and Other Reptiles from the Mesozoic of Mexico 99-109 [M. Carrano/M. Carrano] |