Seguenzia monocingulata

Seguenzia monocingulata is an extinct species of sea snail, a marine gastropod mollusk in the family Seguenziidae.[2] It resembles Seguenzia formosa and has been regarded as a synonym of that (extant) species. However the two species are distinct, based on shell morphology.[3]

Seguenzia monocingulata
Drawing with two views of a shell of Seguenzia monocingulata
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Vetigastropoda
Family: Seguenziidae
Genus: Seguenzia
Species:
S. monocingulata
Binomial name
Seguenzia monocingulata
Seguenza, 1876 [1]

Description

The height of the shell attains 4 mm. The white, imperforate shell has a high conoid shape. The whorls have revolving ribs, of which the last has about four distant prominent ones, besides minor striae on the base.[4]

Distribution

This species was originally described by Seguenza from Pliocene fossils found at Torrente Trapani, a locality of the city of Messina, Sicily.[5] It is common in deep-sea deposits from southern Italy.[3]

References

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