Gastropods - Granbury, Hood Co., TX

Kingdom: Animalia, Phylum: Mollusca, Class: Gastropoda

Gastropod fossils (snails) are relatively common on our property and we have a variety of them. They are from the Cretaceous period, living about 100 million years ago. Anchura, Cerithium Bosquense, Tylostoma and Turritella fossils are abundant on the property. As you can see below, the shape and sizes of the fossils vary greatly. The Turritella is long and narrow, and the Tylostoma are fatter, and more round. The Anchura typically have a swirly ornamentation around the whorls of the snail and the Cerithium Bosquense have a loose coil. In the same formation, we have found ammonites and echinoids(sea urchins). This is the Goodland and Comanche Peak Formations -Cretaceous - Albian stage (c. 105 mya).

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Hood County, TX 

Tylostoma tumidum #100

Comanche Peak Formation

Hood Co., TX

Anchura sp. #100b

Comanche Peak Formation

Hood Co., TX

Tylostoma tumidum #100c

Comanche Peak Formation

Hood Co., TX

Tylostoma tumidum #100d

Comanche Peak Formation

Hood Co., TX

Cerithium bosquense #110

Comanche Peak Formation

Hood Co., TX

Tylostoma tumidum in Matrix

Comanche Peak Formation

Hood Co., TX

Tylostoma tumidum #119a

Comanche Peak Formation

Hood Co., TX

Tylostoma tumidum #119b

Comanche Peak Formation

Hood Co., TX

Anchura #100e

Comanche Peak Formation

Hood Co., TX

Tylostoma tumidum #112

Comanche Peak Formation

Hood Co., TX

Turritella Cross Section #116

Comanche Peak Formation

Hood Co., TX

Tylostoma tumidum #122

Comanche Peak Formation

Hood Co., TX

Anchura #148

Comanche Peak Formation

Hood Co., TX

Mix of Small Gastropods  #152

Comanche Peak Formation

Hood Co., TX

Tylostoma tumidum #160

Comanche Peak Formation

Hood Co., TX

Tylostoma tumidum #172 Comanche Peak Formation Hood Co., TX

Tylostoma tumidum #172

Comanche Peak Formation

Hood Co., TX

Tylostoma tumidum #244

Comanche Peak Formation

Hood Co., TX

Tylostoma tumidum #244b

Comanche Peak Formation

Hood Co., TX

Anchura #244c

Comanche Peak Formation

Hood Co., TX

Snailbed #244d

Comanche Peak Formation

Hood Co., TX

Anchura #244e

Comanche Peak Formation

Hood Co., TX

Cerithium bosquense #244f

Comanche Peak Formation

Hood Co., TX

Cerithium bosquense #244g

Comanche Peak Formation

Hood Co., TX

Turritella bed #244h

Comanche Peak Formation

Hood Co., TX

Cerithium bosquense 

Comanche Peak Formation

Hood Co., TX

Turritella in Matrix #390

Comanche Peak Formation

Hood Co., TX

Tylostoma tumidum #412

Comanche Peak Formation

Hood Co., TX

Tylostoma terra rosa #408

Comanche Peak Formation

Hood Co., TX

Tylostoma tumidum #396

Comanche Peak Formation

Hood Co., TX

Tylostoma tumidum #396b

Comanche Peak Formation

Hood Co., TX

Tylostoma tumidum #396c

Comanche Peak Formation

Hood Co., TX

Tylostoma tumidum #396e

Comanche Peak Formation

Hood Co., TX

Cerithium sp. #396f

Comanche Peak Formation

Hood Co., TX

Tylostoma tumidum #397

Comanche Peak Formation

Hood Co., TX

Gyrodes and Neithia in Terra rosa #397b

Comanche Peak Formation

Hood Co., TX

Tylostoma tumidum #397c

Comanche Peak Formation

Hood Co., TX

Tylostoma tumidum #397d

Comanche Peak Formation

Hood Co., TX

Tylostoma #178

Goodland Formation

Benbrook, TX

Anchura #405

Comanche Peak Formation

Hood Co., TX

Anchura #419

Goodland Formation

Benbrook, TX

Nerinea texana #412

Comanche Peak Formation

Hood Co., TX

Tylostoma tumidum #389

Comanche Peak Formation

Hood Co., TX