San Carlos Formation

San Carlos Formation
Stratigraphic range: Campanian PreꞒ Ꞓ O S D C P T J K Pg N
Exposures of San Carlos Formation at Rancho Don Chuy, Aldama Municipality, Chihuahua.
Type	Geological formation
Underlies	Caracol Formation
Overlies	Picacho Formation
Lithology
Primary	Sandstone
Other	Shale
Location
Region	North America
Country	Mexico, United States
Type section
Named for	San Carlos Mine
Named by	Vaughan, T.W.[1]

The San Carlos Formation is a geological formation in west Texas and east Chihuahua whose strata date back to the Campanian stage of the Late Cretaceous.[2] Dinosaur remains are among the fossils that have been recovered from the formation.[3]

Plants

• Javelinoxylon deca[4]
• Agathoxylon sp.[5]
• Paraphyllanthoxylon anasazi[5]

Vertebrate paleofauna

• Gryposaurus sp.
• Kritosaurus sp. (Gryposaurus sp.)
• Stegoceras sp.
• Deinosuchus sp.

Invertebrate paleofauna

• Mortoniceras
• Brancoceras
• Prionocyclus
• Coilopoceras
• Acanthoceras
• Acompsoceras
• Romaniceras
• Mammites
• Pseudothurmannia

See also

• List of dinosaur-bearing rock formations

References

1. Vaughan, T.W. 1900. Reconnaissance in Rio Grande coal fields of Texas. Washington, United States, Geological Survey Bulletin 164.
2. Hernández-Noriega L., Ramírez-Tello E., Ávila-Lugo F. y Carrizales-Aguilar A. 2000. Carta Geológico-Minera, Ciudad Delicias H13-11, Chihuahua, Servicio Geológico Mexicano, Primera Edición. Map 1:250 000 and text.
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. Estrada-Ruiz, E., & Martínez-Cabrera, H. I. (2011). A new late cretaceous (Coniacian-Maastrichtian) Javelinoxylon wood from Chihuahua, Mexico. IAWA Journal, 32(4), 521-530. https://doi.org/10.1163/22941932-90000074
5. "View of Maderas fósiles de la Formación San Carlos (Cretácico Superior), Chihuahua, México". 2024-02-13. Archived from the original on February 13, 2024. Retrieved 2024-06-18.

External links