La Bocana Roja Formation

La Bocana Roja Formation
Stratigraphic range: Late Cretaceous PreꞒ Ꞓ O S D C P T J K Pg N
Type	Geological formation
Underlies	Punta Baja Formation
Location
Region	North America

La Bocana Roja Formation is a geological formation in Baja California, Mexico. Its strata date back to the Late Cretaceous, although the precise age is unclear. ^{[1] [2]} Dinosaur remains have been recovered from the formation. ^[3]

Vertebrate paleofauna

Color key Taxon Reclassified taxon Taxon falsely reported as present Dubious taxon or junior synonym Ichnotaxon Ootaxon Morphotaxon		Notes Uncertain or tentative taxa are in small text; crossed out taxa are discredited.

Vertebrates reported from the La Bocana Roja Formation
Genus	Species	Location	Member	Material	Notes	Images
Alexornis [4]	A. antecedens [4]			"Postcranial elements." [5]		Labocania
Hadrosauridae	Indeterminate			"bone fragments; humerus" [6]
Labocania [7]	L. anomala [7]			"Very fragmentary skull and postcrania." [8]
Lambeosaurinae	Indeterminate			"left ischium and fragment of left ilium, right jugal, dentary, radial fragment, scapula, ulna and fibula fragment, humerus, pedal ungual phalanx." [6]	Probably belongs to one taxon.

See also

• Earth sciences portal
• Paleontology portal
• Dinosaurs portal

• List of dinosaur-bearing rock formations

Footnotes

1. Rivera-Sylva, Héctor E.; Longrich, Nicholas R. (2024). "A New Tyrant Dinosaur from the Late Campanian of Mexico Reveals a Tribe of Southern Tyrannosaurs". Fossil Studies. 2 (4): 245–272. doi: 10.3390/fossils2040012 .
2. Kane, I. A.; Hodgson, D. M.; Hubbard, S. M.; McArthur, A. D.; Poyatos-Moré, M.; Soutter, E. L.; Flint, S. S.; Matthews, W. (2022). "Deep-water Tectono-Stratigraphy at a Plate Boundary Constrained by Large N-Detrital Zircon and Micropaleontological Approaches: Peninsular Ranges Forearc, Baja California, Mexico". The Sedimentary Record. 20 (1). doi: 10.2110/001c.37652 . S2CID   59406495.
3. Weishampel, David B; et al. (2004). "Dinosaur distribution (Late Cretaceous, North America)." In: Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. Pp. 574-588. ISBN   0-520-24209-2.
4. "La Bocana Roja Formation." Weishampel, et al. (2004). Pg. 588. Also see "Appendix: Summary of the Mesozoic Reptilian Fossils of California," in Hilton (2003) p. 264
5. "Table 11.1," in Weishampel, et al. (2004). Page 212.
6. Ramírez-Velasco, A. A.; Hernández-Rivera, R. (2015). "Diversity of late cretaceous dinosaurs from Mexico" (PDF). Boletín Geológico y Minero. 126 (1): 63–108. Archived from the original (PDF) on 2022-02-25. Retrieved 2020-10-02.
7. "La Bocana Roja Formation." Weishampel, et al. (2004). Pg. 588. Also see "Appendix: Summary of the Mesozoic Reptilian Fossils of California," in Hilton (2003) p. 261
8. "Table 5.1," in Weishampel, et al. (2004). Page 114.

References

• Hilton, Richard P. 2003. Dinosaurs and Other Mesozoic Reptiles of California. Berkeley: University of California Press. 318 pp.
• Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. 861 pp.  ISBN   0-520-24209-2.