Worthenia is an extinct genus of sea snail found in the fossil record.

This genus is primarily found in rocks formed during the Devonian to Triassic periods (416-200 Ma) from the central areas of North America.

Worthenia was named for the paleontologist Amos Henry Worthen, who lived from 1813-1888.

[4] Worthenia species have a "turban-shaped shell in which a raised ridge follows the margin of the whorls.

Small nodes occur along the ridge, and the opening of the shell is oval and large.