El Gallo Formation
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The El Gallo Formation is a geological formation in Mexico whose strata date back to the Late Cretaceous, from the Santonian to the Maastrichtian.[1] Dinosaur remains are among the fossils that have been recovered from the formation.[2]
Vertebrate paleofauna
Crurotarsans
| Crurotarsans of the El Gallo Formation | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | Location | Member | Abundance | Notes | Images |
| Brachychampsa | [3] | |||||
| Leidyosuchus | ||||||
Dinosaurs
Indeterminate theropod, coelurosaur, dromaeosaurid, tyrannosaurid, hadrosaurid, and ankylosaurid remains are known from the formation.[4] Dinosaur eggs are known from the formation.[5] Alexornis antecedens actually comes from the La Bocana Roja Formation. An indeterminate hadrosaurine is known from the formation.[6] Potential Hypacrosaurus remains have been unearthed here.[7][8]
| Dinosaurs of the El Gallo Formation | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | Location | Member | Abundance | Notes | Images |
| cf. Chirostenotes[4] | C. sp. | |||||
| Gryposaurus[6] | Indeterminate | |||||
| Lambeosaurus[9] | L. laticaudus[9] | |||||
| Magnapaulia | M. laticaudus | |||||
| Saurornitholestinae[4] | Indeterminate | |||||
| cf. Troodon[10] | T. formosus[10] | |||||
| Tyrannosauridae[4] | Indeterminate | Possibly represents a new taxon.[4] | ||||
Lepidosaurs
| Lepidosaurs of the El Gallo Formation | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | Location | Member | Abundance | Notes | Images |
| Paraglyphanodon[11] | Indeterminate[11] | Probably a juvenile Polyglyphanodon.[5] | ||||
| Polyglyphanodon[5] | P. bajaensis[5] | |||||
Mammals
| Mammals of the El Gallo Formation | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | Location | Stratigraphic position | Abundance | Notes | Images |
| Mesodma[12] | M. formosa[12] | |||||
| Pediomys[5] | Indeterminate[5] | |||||
| Stygimys[11] | Indeterminate[11] | |||||
Amphibians
An indeterminate albanerpetontid is known from the formation.[13]
See also
References
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- ↑ "El Gallo Formation." Weishampel et al., 2004, pp.587-588
- ↑ "Appendix: Summary of the Mesozoic Reptilian Fossils of California," in Hilton (2003) p. 277
- ↑ a b c d e Script error: No such module "Citation/CS1".
- ↑ a b c d e f "El Gallo Formation, Baja California Del Norte, Mexico," in Sullivan and Lucas (2006). Page 16.
- ↑ a b Script error: No such module "Citation/CS1".
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- ↑ a b "Appendix: Summary of the Mesozoic Reptilian Fossils of California," in Hilton (2003) p. 260
- ↑ a b "4.5 Estado de Baja California Norte, Mexico; 1. El Gallo Formation," in Weishampel, et al. (2004). Pages 587-588.
- ↑ a b c d Listed as "cf. Paraglyphanodon" in "El Gallo Formation, Baja California Del Norte, Mexico," in Sullivan and Lucas (2006). Page 16.
- ↑ a b Listed as "Mesodma cf. M. formosa" in "El Gallo Formation, Baja California Del Norte, Mexico," in Sullivan and Lucas (2006). Page 16.
- ↑ Script error: No such module "Citation/CS1".
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Bibliography
- Sullivan, R.M., and Lucas, S.G. 2006. "The Kirtlandian land-vertebrate "age" – faunal composition, temporal position and biostratigraphic correlation in the nonmarine Upper Cretaceous of western North America." New Mexico Museum of Natural History and Science, Bulletin 35:7-29
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- Hilton, Richard P. 2003. Dinosaurs and Other Mesozoic Reptiles of California. Berkeley: University of California Press. 318 pp.
Further reading
- M. L. Chavarria-Arellano, T. R. Simões, and M. Montellano-Ballesteros. 2018. New data on the Late Cretaceous lizard Dicothodon bajaensis (Squamata, Borioteiioidea) from Baja California, Mexico reveals an unusual tooth replacement pattern in squamates. Anais da Academia Brasileira de Ciências
- O. A. López Conde, J. Sterli, M. L. Chavarría Arellano, D. B. Brinkman, and M. Montellano Ballesteros. 2018. Turtles from the Late Cretaceous (Campanian) of El Gallo Formation, Baja California, Mexico. South American Journal of Earth Sciences 88:693-699
- B. R. Peecook, J. A. Wilson, R. Hernandez-Rivera, M. Montellano-Ballesteros, and G. P. Wilson. 2014. First tyrannosaurid remains from the Upper Cretaceous "El Gallo" Formation of Baja California, Mexico. Acta Palaeontologica Polonica 59(1):71-80
- 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
- H. E. Rivera Sylva, K. Carpenter, and F. J. Aranda Manteca. 2011. Late Cretaceous nodosaurids (Ankylosauria: Ornithischia) from Mexico. Revista Mexicana de Ciencias Geológicas 28(3):371-378
- W. J. Morris. 1973. Mesozoic and Tertiary vertebrates in Baja California. National Geographic Society Research Reports (1966) 7:197-209
- A. Silva Bárcenas. 1969. Localidades de vertebrados fósiles en la Republica Méxicana [Vertebrate fossil localities in the Mexican Republic]. Universidad Nacional Autónoma de México, Instituto de Geología, Paleontología Mexicana 28:1-34
- W. Langston and M. H. Oakes. 1954. Hadrosaurs in Baja California. Bulletin of the Geological Society of America 65(12):1344
Categories:
- Pages with script errors
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- Geologic formations of Mexico
- Upper Cretaceous Series of North America
- Cretaceous Mexico
- Campanian Stage
- Mudstone formations
- Sandstone formations
- Fluvial deposits
- Tidal deposits
- Ooliferous formations
- Fossiliferous stratigraphic units of North America
- Paleontology in Mexico
- Baja California