Penion petitianus
| Penion petitianus | |
|---|---|
 | |
| Shell of Penion petitianus (syntype at MNHN, Paris) | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | Neogastropoda |
| Family: | Austrosiphonidae |
| Genus: | Penion |
| Species: | †P. petitianus |
| Binomial name | |
| †Penion petitianus (A. d'Orbigny, 1841) | |
| Synonyms | |
| |
Penion petitianus is an extinct species of marine snail or whelk, belonging to the true whelk family Austrosiphonidae. [1]
Description
(Original description in Latin and French) The shell is elongated. The whorls are slightly convex and are longitudinally striated; these striae (fine grooves) are unequal in size, and the siphonal canal is short.
The dimensions of the shell include a spiral angle opening of 52°, a total length of 70 mm, and a width of 34 mm.
The shell is moderately elongated and thick. The spire is formed by a regular angle and is composed of whorls that are slightly convex and quite distinct. These whorls are furnished longitudinally with unequal striae, and the siphonal canal is moderate in its development. [2]
Distribution
Fossils of Penion petitianus have been found in Miocene strata at Coquimbo, Chile.
References
- ↑ Penion petitianus (A. d'Orbigny, 1841). 26 April 2026. Retrieved through: World Register of Marine Species.
- ↑ Orbigny, A. d'. (1838-1844). Voyage dans l'Amérique méridionale (le Brésil, la république orientale de l'Uruguay, la République argentine, la Patagonie, la république du Chili, la république de Bolivia, la république du Pérou), exécuté pendant les années 1826, 1827, 1828, 1829, 1830, 1831, 1832 et 1833. Tome 3 (4). Paléontologie. 188 pp., 22 plates
This article incorporates text from this source, which is in the public domain.