Notes on the Fauna of the Chipola Formation - XL a New Species of the Genus Cerithium (Mollusca: Gastropoda)

Gary W. Schmelz

Abstract


Since Shirley Hoerle published her paper on the Cerithiidae and Potamididae from the Chipola Formation in Tulane Studies in Geology and Paleontology (1972, V. 10, No. 1, pp. 1-22) a new species of Cerithium has been discovered by two different fossil collectors. The distribution of this new species is limited to the lower Chipola Formation deposits at Alum Bluff and the lower deposits along the Chipola River.  It is relatively common at Alum Bluff but rare along the Chipola River and at both localities it is extremely difficult to collect because drought conditions must exist in order to gain access to the deposits where it is found.  Over the intervening years, however, a sufficient number of shell fragments have been collected to allow the investigator to describe this Cerithium as a new species.


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