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Littorinimorpha Order

Class: Gastropoda

Aporrhaidae

Gastropod

Formation: Walnut
Travis County | T1-21
Gastropod - Austin

Gastropod

Formation: Comanche Peak
Lampasas County | L1-462
Gastropod - Lampasas, TX

Anchura Texana

Formation: Austin Chalk
Williamson County | W1-697
Anchura Texana - None

Gastropod

Formation: Walnut
Travis County | T1-699
Gastropod - None

Arrhoges sp.

Formation: Walnut
Travis County | T1-701
Arrhoges sp. - None

Gastropod

Formation: Edwards Limestone
Kerr County | K1-711
Gastropod - None

Naticidae

Gyrodes sp.

Formation: Edwards Limestone
Kerr County | K1-54
Gyrodes sp. - Hunt

Gastropod

Formation: Walnut
Travis County | T1-70
Gastropod - Hunt

Gastropod

Formation: Glen Rose
Comal County | 192
Gastropod - Canyon Lake

Polinices aratus

Formation: Stone City
Burleson County | WB-356
Polinices aratus - Whiskey Bridge

Lunatia praegrandis

Formation: Edwards Limestone
Kerr County | K1-719
Lunatia praegrandis - None

Personidae

Distorsio septemdentata

Formation: Stone City
Burleson County | WB-92
Distorsio septemdentata - Whiskey Bridge

Tylostomatidae

Tylostoma harrisi

Formation: Buda
Williamson County | W2-694
Tylostoma harrisi - None

Tylostoma sp.

Formation: Edwards Limestone
Kerr County | K1-710
Tylostoma sp. - None