Turris altispira

Turris altispira is an extinct species of sea snail, a marine gastropod mollusk in the family Turridae, the turrids.[1]

Turris altispira
Drawing a shell of Turris altispira
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Caenogastropoda
Order: Neogastropoda
Superfamily: Conoidea
Family: Turridae
Genus: Turris
Species:
T. altispira
Binomial name
Turris altispira
(W.L. May, 1922)

C. Hedley (1922) was of the opinion that this species may belong to the genus Turricula[2]

Description

The length of the shell attains 21 mm.

(Original description) The narrowly fusiform shell has a very high attenuate spire, which is nearly twice the length of the aperture. It contains about 13 rounded whorls. The suture is impressed, with a broad groove, or hollow immediately below it. The sculpture consists of well developed axial ribs, about six on a half-turn. These are crossed on the lower half of the whorl by four spirals, which nodulate the ribs. The upper slope being nearly smooth, but showing the growth lines of the sinus which occupied this position. The spiral lirae continue on the base. The aperture is narrow, contracted anteriorly into a siphonal canal. The outer lip is imperfect.<ref>W.L. May, New Species of Fossil Shells from Table Cape; Papers and proceedings of the Royal Society of Tasmania, 1922<w/ref>

Distribution

This extinct marine species was found in Miocene strata in Tasmania, Australia

References
  1. Fossilshells, Turris altispira
  2. Hedley, C. 1922. A revision of the Australian Turridae. Records of the Australian Museum 13(6): 213-359, pls 42-56 Public Domain This article incorporates text from this source, which is in the public domain.
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