Maoritomella equispiralis

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Maoritomella equispiralis
Temporal range: late Oligocene
Holotype from Auckland War Memorial Museum
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Caenogastropoda
Order: Neogastropoda
Family: Borsoniidae
Genus: Maoritomella
Species:
M. equispiralis
Binomial name
Maoritomella equispiralis

Maoritomella equispiralis is an extinct species of sea snail, a marine gastropod mollusc, in the family Borsoniidae.[1] Fossils of the species date to the late Oligocene, and are found in the strata of the Port Phillip Basin of Victoria, Australia.

Reverse view of holotype

In the original description, Powell described the species as follows:

Shell slender, with lightly convex whorls; spire outlines almost straight; no peripheral carina. Spiral cords strong, more or less of equal development, 4 to 5 on early whorls, 6 from penultimate onward. About 25 spirals on body-whorl from suture to anterior end. Axial threads crowd the interspaces and actually cross and cancellate the weaker spirals.[2]

The holotype of the species measures 12.5 mm (0.49 in) in length and has a diameter of 4.2 mm (0.17 in).[2]

Taxonomy

Distribution

References

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