A molluscan faunule from the Miocene Cumaca Formation of the western margin of the Tuy Basin (Venezuela) is described. The fauna yields two species of freshwater snails and a single terrestrial snail species. Tryonia vivasi nov. spec. is described from the fauna, and its biogeographical significance is discussed.

Miocene, Venezuela, Gastropoda, Tryonia, new species, Cumaca Formation
Cainozoic Research
Staff publications

Wesselingh, F.P, & Macsotay, O. (2006). A Miocene molluscan faunule from Caucagua (Miranda State, Venezuela), with the description of a new species of Tryonia (Mollusca, Gastropoda). Cainozoic Research, 4(1-2), 61–65.