Lyosoma
Species
Lyosoma enoda Sohl, 1965
Occurrence: Carmel, Canyon Springs
Reference: Sohl, 1965
Lyosoma powelli (White, 1876)
Occurrence: Carmel, Twin Creek, Gypsum Spring, Sundance. Sohl, 1965 says that it is not abundant, but is the most widespread gastropod species in the Utah Jurassic.
Originally Neritina? powelli; also formerly included in Desmieria and Ostostoma
Reference: Sohl, 1965