El Gallo Formation

El Gallo Formation
Stratigraphic range: Late Cretaceous
Type Geological formation
Location
Region North America

The El Gallo Formation is a geological formation in Mexico whose strata date back to the Late Cretaceous. Dinosaur remains are among the fossils that have been recovered from the formation.[1]

Vertebrate paleofauna

Crurotarsans

Crurotarsans of the El Gallo Formation
Genus Species Location Member Abundance Notes

Brachychampsa

[2]

Leidyosuchus

Dinosaurs

Dinosaur eggs are known from the formation.[3] Alexornis antecedens actually comes from the La Bocana Roja Formation.

Dinosaurs of the El Gallo Formation
Genus Species Location Member Abundance Notes Images

Ankylosauridae[4]

Indeterminate[4]

Lambeosaurus[5]

L. laticaudus[5]

Magnapaulia

M. laticaudus

Saurornitholestes[6]

Indeterminate[6]

Troodon[6]

T. formosus[6]

Lepidosaurs

Lepidosaurs of the El Gallo Formation
Genus Species Location Member Abundance Notes

Paraglyphanodon[7]

Indeterminate[7]

Probably a juvenile Polyglyphanodon.[3]

Polyglyphanodon[3]

P. bajaensis[3]

Mammals

Mammals of the El Gallo Formation
Genus Species Location Stratigraphic position Abundance Notes

Mesodma[8]

M. formosa[8]

Pediomys[3]

Indeterminate[3]

Stygimys[7]

Indeterminate[7]

See also

Footnotes

  1. "El Gallo Formation." Weishampel, et al. (2004). Pg. 587-8.
  2. "Appendix: Summary of the Mesozoic Reptilian Fossils of California," in Hilton (2003) p. 277
  3. 3.0 3.1 3.2 3.3 3.4 3.5 "El Gallo Formation, Baja California Del Norte, Mexico," in Sullivan and Lucas (2006). Page 16.
  4. 4.0 4.1 Listed as "cf. Euoplocephalus sp." in "4.5 Estado de Baja California Norte, Mexico; 1. El Gallo Formation," in Weishampel, et al. (2004). Pages 587-588.
  5. 5.0 5.1 "Appendix: Summary of the Mesozoic Reptilian Fossils of California," in Hilton (2003) p. 260
  6. 6.0 6.1 6.2 6.3 "4.5 Estado de Baja California Norte, Mexico; 1. El Gallo Formation," in Weishampel, et al. (2004). Pages 587-588.
  7. 7.0 7.1 7.2 7.3 Listed as "cf. Paraglyphanodon" in "El Gallo Formation, Baja California Del Norte, Mexico," in Sullivan and Lucas (2006). Page 16.
  8. 8.0 8.1 Listed as "Mesodma cf. M. formosa" in "El Gallo Formation, Baja California Del Norte, Mexico," in Sullivan and Lucas (2006). Page 16.

References