Ojinaga Formation

Ojinaga Formation
Ojinaga Formation
Stratigraphic range: Turonian PreꞒ Ꞓ O S D C P T J K Pg N ↓ Mesozoic
	Skull of Tylosaurus cf. (kansasensis) nepaeolicus (SGM-M1) from Ojinaga Municipality, Chihuahua, Mexico
Type	Geological formation
Sub-units	Nogal Formation, Picacho Formation
Underlies	San Carlos Formation
Overlies	Aurora Limestone, Buda Formation
Thickness	148–1395 m
Lithology
Primary	Limestone
Other	Shale, Sandstone
Location
Region	South North America
Country	United States, Mexico
Type section
Named for	Ojinaga Municipality
Named by	R.H. Burrows

Last updated June 09, 2025

The Ojinaga Formation is a Mesozoic geologic formation. Dinosaur remains are among the fossils that have been recovered from the formation, although none have yet been referred to a specific genus.^[3]

Vertebrate paleofauna

Tylosaurus cf. (kansasensis) nepaeolicus ^[4]

Invertebrate paleofauna

Footnotes

↑ Wolleben, J.A., 1965, Nomenclatura litoestratigráfica de las unidades del Cretácico Superior en el Oeste de Texas y el Noreste de Chihuahua: Boletín del Instituto de Geología, 38(2), 65-74.
↑ Burrows, R.H., 1910. Geology of Northern Mexico Geological Society of American Bulletin, 7(1), 85–103. https://doi.org/10.18268/BSGM1910v7n1a12
↑ Weishampel, et al. (2004). "Dinosaur distribution." Pp. 517-607.
↑ Abelaid Loera Flores (2013). "Occurrence of a tylosaurine mosasaur (Mosasauridae; Russellosaurina) from the Turonian of Chihuahua State, Mexico" (PDF). Boletín de la Sociedad Geológica Mexicana. 65 (1): 99–107. doi: 10.18268/BSGM2013v65n1a8 .
1 2 3 4 5 6 7 8 9 Castillo-Madrid, A., 1982, Reconocimiento geológico de una porción de los estados de Chihuahua y Coahuila: Mexico City, Universidad Nacional Autónoma de México, tesis profesional, 160 p.
1 2 3 4 5 6 7 Cabrera, F., Narváez, G., Chávez, J.M., Alcántara, J., Gómez, F., 1984, Exploración carbonífera en la Cuenca de Ojinaga, Chihuahua: Informe inédito 45, 20 p.
1 2 3 4 5 6 Westgate, J., Brown, R., Pittman, J., Cope, D., Kalb, J., 2006, First occurrences of Deinosuchus in Mexico, en 66th Annual Meeting Society of Vertebrate Paleontology, Ontario, Canada: Journal of Vertebrate Paleontology, 26(3), p. 138.

References

Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. 861 pp. ISBN 0-520-24209-2.

External links

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[1] Wolleben, J.A., 1965, Nomenclatura litoestratigráfica de las unidades del Cretácico Superior en el Oeste de Texas y el Noreste de Chihuahua: Boletín del Instituto de Geología, 38(2), 65-74.

[2] Burrows, R.H., 1910. Geology of Northern Mexico Geological Society of American Bulletin, 7(1), 85–103. https://doi.org/10.18268/BSGM1910v7n1a12

[dinosaurdistribution-3] Weishampel, et al. (2004). "Dinosaur distribution." Pp. 517-607.

[Flores-4] Abelaid Loera Flores (2013). "Occurrence of a tylosaurine mosasaur (Mosasauridae; Russellosaurina) from the Turonian of Chihuahua State, Mexico" (PDF). Boletín de la Sociedad Geológica Mexicana. 65 (1): 99–107. doi: 10.18268/BSGM2013v65n1a8 .

[Castillo-5] 1 2 3 4 5 6 7 8 9 Castillo-Madrid, A., 1982, Reconocimiento geológico de una porción de los estados de Chihuahua y Coahuila: Mexico City, Universidad Nacional Autónoma de México, tesis profesional, 160 p.

[Cabrera-6] 1 2 3 4 5 6 7 Cabrera, F., Narváez, G., Chávez, J.M., Alcántara, J., Gómez, F., 1984, Exploración carbonífera en la Cuenca de Ojinaga, Chihuahua: Informe inédito 45, 20 p.

[Westgate-7] 1 2 3 4 5 6 Westgate, J., Brown, R., Pittman, J., Cope, D., Kalb, J., 2006, First occurrences of Deinosuchus in Mexico, en 66th Annual Meeting Society of Vertebrate Paleontology, Ontario, Canada: Journal of Vertebrate Paleontology, 26(3), p. 138.

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