Del Rio Clay

The Del Rio Clay is a geologic formation in Texas. It preserves fossils dating back to the Cretaceous period.

Del Rio Clay
Stratigraphic range: Cretaceous
Type	Formation
Location
Region	Arkansas
Country	United States

Del Rio Clay stratigraphic column in Texas

A stratigraphic column at the Mount Bonnell location starts with the Lower Cretaceous Trinity Group overlain by the Edwards Group and the Georgetown Formation. Upper Cretaceous formations follow, starting with the Del Rio Clay, Buda Limestone, and then the Eagle Ford Group. Formations within the Trinity Group include the Hammett Formation, Cow Creek Formation, Hensel Formation, and Lower and Upper Glen Rose Formation. The Upper Cretaceous rock units confine the Edwards Aquifer within the Edwards Group and Georgetown Formation.^[1]

See also

• Earth sciences portal
• Texas portal
• Paleontology portal

• List of fossiliferous stratigraphic units in Texas
• Paleontology in Texas