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Americoliva dufresnei (Basterot, 1825)
Genus: AmericolivaUnranked: Americoliva - Eastern Atlantic species
Distribution: Oligocene. Oligocene of the Aquitaine Basin, France. Miocene. Miocene of the North Sea Basin (Belgium. Germany. Netherlands). Miocene of the Loire Basin, France. Miocene of the Aquitaine Basin, France. Eastern/Central Paratethys. Bulgaria. Italy. Turkey . Late Miocene. Canary Islands.
This species is usually considered to be the ancestor of the extant Oliva flammulata Lamarck, 1811. It is known from the Oligocene (Aquitaine Basin. France (Chattian)) and Miocene (North Sea Basin. Belgium. Germany. The Netherlands; Aquitaine Basin. France. Aquitanian-Burdigalian-Serravallian; Eastern/Central Paratethys. Bulgaria. Italy. Turkey (Serravallian); Canary Islands.
European Miocene "Oliva" are commonly attributed to this species, with no other distinct species recognised. As expressed by Lozouet et al (op cit.) it is possible that several distinct species exist in the Upper Oligocene-Lower Miocene of France.