Girish Mahajan (Editor)

Centrifugus

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Covid-19
Kingdom  Animalia
Class  Gastropoda
Order  Archaeogastropoda
Rank  Genus
Phylum  Mollusca
Subclass  Eogastropoda
Suborder  Euomphalina
Similar  Cyrtograptus, Monograptus, Graptolithina, Conodont

Centrifugus is an extinct species of fossil sea snail, a marine gastropod mollusk in the family Euomphalidae, which paleontologists place in the order Archaeogastropoda.

This species was originally known from the Upper Silurian of northern Europe (Gotland).

Description

The shell has a nearly flat spire, and is widest across the base, which is marked by a peripheral keel. The upper side of the aperture has a narrow slit, and a selenizone located close to the upper suture. Five strong spiral cords alternating with weaker ones cover the upper surface of the shell.

References

Centrifugus Wikipedia


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