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