A New Species of Trichotropis (Gastropoda: Mesogastropoda) From the Esmeraldas Beds, Onzole Formation, Northwestern Ecuador

William D. Pitt, Lois J. Pitt

Abstract


Only one species of Trichotropis. T. pacifica (Dall, 1908b), is known to occur in the Recent fauna of the Panamic-Galapagan faunal province of the Tropical East Pacific. A new species, Trichotropis vokesae, described herein from the Pliocene Esmeraldas beds, Onzole Formation, of northwestern Ecuador, is the first species of Trichotropis from the fossil record in the Tropical East Pacific.

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