Bolma is a genus of medium to large sea snails with a calcareous operculum, marine gastropod molluscs in the family Turbinidae, the turban snails. Fossil records. The genus is known from the Eocene to the Recent periods (age range: from 33.9 to 0.0 million years ago). Fossils shells have been found in France, Greece, Japan, Morocco, Spain, Vanuatu, Guam, Cyprus, Greece, South Africa, Spain, Austria, Italy, Slovakia, New Zealand, Australia and Tonga. There are about 5 extinct species. Description. The central teeth of the radula have no cusps.
https://en.wikipedia.org/wiki/Bolma
Bolma is a genus of medium to large sea snails with a calcareous operculum, marine gastropod molluscs in the family Turbinidae, the turban snails. Fossil records. The genus is known from the Eocene to the Recent periods (age range: from 33.9 to 0.0 million years ago). Fossils shells have been found in France, Greece, Japan, Morocco, Spain, Vanuatu, Guam, Cyprus, Greece, South Africa, Spain, Austria, Italy, Slovakia, New Zealand, Australia and Tonga. There are about 5 extinct species. Description. The central teeth of the radula have no cusps.
