Tomopleura ludbrookae

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Tomopleura ludbrookae
Temporal range: Middle Miocene–Late Pliocene
Holotype from Auckland War Memorial Museum
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Caenogastropoda
Order: Neogastropoda
Family: Borsoniidae
Genus: Tomopleura
Species:
T. ludbrookae
Binomial name
Tomopleura ludbrookae
Powell, 1944

Tomopleura ludbrookae is an extinct species of sea snail, a marine gastropod mollusc in the family Raphitomidae.[1] Fossils of the species date to the middle Miocene and potentially the Late Pliocene, and have been found in strata of the St Vincent Basin of South Australia, and potentially from the Eucla Basin of Western and South Australia.

Reverse view of holotype

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

Shell much more slender than either dilectoides or the Recent subtilinea; body-whorl broadly arcuate, only slightly angulate, and with more numerous, closer-spaced spirals. Spire-whorls with the main carina just below the middle, two spirals submargin the suture, upper one a weak thread, lower one a strong cord, Two to three threads on the shoulder or sinus area, and two strong cords below the peripheral carina. About 23 spirals on body-whorl, 6 linear-spaced on anterior end. Interspaces on base 2 to 3 times width of cords. All interspaces delicately sculptured with closely-spaced flexuous axial threads. The base is more gradually tapered and the anterior end not so sharply pointed as in dilectotdes.[2]

The holotype of the species measures 14.9 mm (0.59 in) in height and 4.6 mm (0.18 in) in diameter.[2]

Taxonomy

Distribution

References

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