Dillwynella texana is an extinct species of sea snail, a marine gastropod mollusk in the family Skeneidae.G. Harris, New and Otherwise Interesting Tertiary Mollusca from Texas; Proceedings of the Academy of Natural Sciences of Philadelphia, Vol. 47, (1895), pp. 45-88
Description The shell contains four spiral, smooth, and shining whorls. The body whorl is nearly smooth but shows a slight tendency to bear furrows or lines radiating from the suture. The umbilicus is small. The aperture is round.
Distribution This marine species was found as a fossil in the Lower Claiborne Eocene, Texas.
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