Notes on the Fauna of the Chipola Formation- XXVII: On the Occurrence of the Bivalve Genus Nucinella Wood

Abstract

Recently, sorting some fine-sieving from Tulane University locality TU 999 in the Chipola Formation (Farley Creek, a tributary of the Chipola River), the writer found a single left valve of a new species of the genus Nucinella Wood, 1851. Careful examination of material previously sorted from all of the 57 Tulane localities in the type area of the formation failed to reveal any additional valves. This scarcity is not unusual, however; of the 35 described species of the genus known to the writer, 11 were based upon single valves.