Pygopyrina hancockensis (Whitney & Kellum)
Echinoid marker bed, Unit 2, Lower Member, Glen Rose Formation, Trinity Group
early Albian Age (Lower Cretaceous)
Canyon Lake, Comal Co., TX
By erose
Echinoid marker bed, Unit 2, Lower Member, Glen Rose Formation, Trinity Group
early Albian Age (Lower Cretaceous)
Canyon Lake, Comal Co., TX
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