San Carlos Formation

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]

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]

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

• Earth sciences portal
• Paleontology portal
• Dinosaurs portal

• List of dinosaur-bearing rock formations