Borsonia tatei is an extinct species of sea snail, a marine gastropod mollusc, in the family Borsoniidae. Fossils of the species date to early Miocene strata of the Port Phillip Basin of Victoria, Australia.
Description
In the original description, Powell described the species as follows:
The holotype of the species measures in height and has a diameter of . It differs from B. eocenica due to having cords and threads which are narrower or equal to the shell interspaces (wider in B. eocenica).
Taxonomy
The species was first described by A. W. B. Powell in 1944. The holotype was collected prior to 1944 from Torquay, Victoria, Australia. It is a part of the H. J. Finlay Collection which is held by the Auckland War Memorial Museum.
In 1981, D. C. Long proposed a subspecies, Borsonia tatei eocenica, to describe similar appearance fossils dating to the late Eocene of the Otway Basin, which by 1985 was being treated as its own species, Borsonia eocenica.
Distribution
This extinct marine species occurs in early Miocene strata of the Port Phillip Basin of Victoria, Australia, including the Puebla Formation.
References