The Lower Cretaceous GryphÆas of the Texas Region (open access)

The Lower Cretaceous GryphÆas of the Texas Region

A report which discusses the specific classification, stratigraphic occurrence, and relationships of one particular group of the many kinds of fossil oysters occurring in the Lower Cretaceous formations of Texas.
Date: 1898
Creator: Hill, Robert Thomas & Vaughan, Thomas Wayland
System: The UNT Digital Library