Original paper

Aquitanian gastropods of coastal Tanzania and their biogeographic implications for the early western Indo-Pacific

Harzhauser, Mathias

Abstract

An Aquitanian (Early Miocene) gastropod assemblage containing 32 taxa from Lindi Bay in Tanzania (East Africa) is described. This tropical marine assemblage reveals an endemicity of c. 81% for the gastropod assemblage of coastal Tanzania. The relations with adjacent bioprovinces are addressed and the Central Eastern African Province (CEAP) is defined as new biogeographic entity within the Proto-Indo-West Pacific Region. Calliostoma lireri n. sp., Rubritrochus africanus n. sp., Rhinoclavis summesbergeri n. sp., Cerithium tanzanicum n. sp., Cerithium prenodulosum n. sp., Tectarius wowagneri n. sp., Turritella lindiensis n. sp., Persististrombus kronenbergi n. sp., Bursa landaui n. sp., Colubraria olegmandici n. sp., Pustulatirus zuschini n. sp., Muricopsis elkeae n. sp., Clavilithes africanicus n. sp., Polygona tipuliensis n. sp. and Gemmula pilleri n. sp. are introduced as new species.

Keywords

GastropodaOligozänAquitaniumBiogeographieOst AfrikaOligoceneAquiqtanianBiogeographyEastern Africa