Mauidrillia supralaevis

Mauidrillia supralaevis is an extinct species of sea snail, a marine gastropod mollusc in the family Horaiclavidae. Fossils of the species date to the early Miocene, and are found in the Mount Harris Formation near Oamaru, Otago, New Zealand.

Description

The species has a moderately sized shell, with 7.5 whorls and a protoconch of 1.5 whorls. The whorls are strongly angulate and blut at the middle. The holotype of the species measures in height and in diameter.

Taxonomy

The species was first described by A.W.B. Powell in 1942. The holotype was collected from Target Gully, Glen Creek, Oamaru, Otago at an unknown date prior to 1943, and is held by the Auckland War Memorial Museum.

Distribution

This extinct marine species occurs in early Miocene strata of the Mount Harris Formation near Oamaru, Otago, New Zealand.