Gastropods from Spring Branch, Comal Co., TX

Kingdom: Animalia, Phylum: Mollusca, Class: Gastropoda

In Spring Branch, Comal Co., TX I found the four types of gastropods shown below. This is the Glen Rose Formation, Trinity Group, Cretaceous.

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Tylostoma #866

Glen Rose Formation

Spring Branch, Comal Co., TX

Tylostoma #866

Glen Rose Formation

Spring Branch, Comal Co., TX

 

Tylostoma #866

Glen Rose Formation

Spring Branch, Comal Co., TX

Cerithium sp. #866d

Glen Rose Formation

Spring Branch, Comal Co., TX

Nerinea texana #867b

Glen Rose Formation

Spring Branch, Comal Co., TX

Nerinea roemeri #874b

Glen Rose Formation

Spring Branch, Comal Co., TX

Nerinea texana  #867c

Glen Rose Formation

Spring Branch, Comal Co., TX

Nerinea roemeri #874

Glen Rose Formation

Spring Branch, Comal Co., TX

Nerinea texana in matrix #867d

Glen Rose Formation

Spring Branch, Comal Co., TX

Nerinea texana in matrix #867g

Glen Rose Formation

Spring Branch, Comal Co., TX