†Turritella cooperi fernandoensis Arnold 1907 (turret shell)
Gastropoda - Cerithioidea - Turritellidae
Full reference: R. Arnold. 1907. New and characteristic species of fossil mollusks from the oil-bearing Tertiary formations of southern California. Proceedings of the United States National Museum 32(1545):525-546
Belongs to Turritella cooperi according to C. W. Merriam 1941
See also Grant, IV and Gale 1931
Sister taxon: Turritella cooperi nova
Type specimen: USNM 164961, a shell
Ecology: facultatively mobile semi-infaunal suspension feeder
Distribution: there are no occurrences of Turritella cooperi fernandoensis in the database