''Pachychilus anagrammatus'' was a species of

freshwater snail Freshwater snails are gastropod mollusks which live in fresh water. There are many different families. They are found throughout the world in various habitats, ranging from ephemeral pools to the largest lakes, and from small seeps and springs ...

during the

Pliocene The Pliocene ( ; also Pleiocene) is the epoch in the geologic time scale that extends from 5.333 million to 2.58Upper Miocene The Late Miocene (also known as Upper Miocene) is a sub-epoch of the Miocene Epoch made up of two stages. The Tortonian and Messinian stages comprise the Late Miocene sub-epoch, which lasted from 11.63 Ma (million years ago) to 5.333 Ma. The ...

that lived in what is now

Texas Texas (, ; Spanish language, Spanish: ''Texas'', ''Tejas'') is a state in the South Central United States, South Central region of the United States. At 268,596 square miles (695,662 km2), and with more than 29.1 million residents in 2 ...

References

External links

Dall, W. H. (1913). On a brackish water Pliocene fauna of the southern Coastal Plain. Proceedings of The United States National Museum. 46 (2023): 225-237
anagrammatus Fossil taxa described in 1913 Gastropods described in 1913 Molluscs of the United States Fossils of the United States Taxa named by William Healey Dall {{Pachychilidae-stub