Aurora Limestone

The Aurora Limestone is a geologic formation in Mexico. It preserves fossils dating back to the Cretaceous period.

Aurora Limestone
Stratigraphic range: Albian PreꞒ Ꞓ O S D C P T J K Pg N Early Cretaceous
Type	Formation
Unit of	Chihuahuan Basin
Underlies	Cuchillo Formation
Overlies	Benavides Formation
Thickness	128 - 1500 m.
Lithology
Primary	Limestone
Other	Shale
Location
Region	South North America
Country	Mexico
Type section
Named for	Aurora Mine
Named by	R.H. Burrows[1]

Vertebrate paleofauna

• Hadrosauridae indet.^[2]

Invertebrate paleofauna

• Orbitolina texana
• Dicyclina schlumbergeri^[3]
• Dictyoconus sp.^[3]
• Oxytropidoceras sp.^[3]
• Lunatia sp.^[3]
• Colomiella recta^[3]
• Colomiella mexicana^[3]
• Enallaster cf. bravoensis^[4]
• Ostrea carinata^[4]
• Pithonella ovalis^[5]
• Stomiosphera sphaerica^[5]
• Calcispherula walnutensis^[5]