Penion petitianus
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{{Short description|Extinct species of gastropod}}
{{Use dmy dates|date=April 2026}}
{{Speciesbox
| fossil_range =
| image =
| image_caption = Shell of ''Penion petitianus'' (holotype)
| genus = Penion
| species = petitianus
| authority = (A. d'Orbigny, 1841)
|extinct=yes
| synonyms =
* † ''Fusus petitianus'' A. d'Orbigny, 1841 superseded combination
}}
'''''Penion petitianus''''' is an [[extinct]] [[species]] of [[marine (ocean)|marine]] [[snail]] or [[whelk]], belonging to the true whelk [[family (biology)|family]] [[Austrosiphonidae]]. {{WRMS species|874110|''Penion petitianus'' (A. d'Orbigny, 1841) |26 April 2026}}
==Description==
(Original description in Latin and French) The shell is elongated. The [[Whorl (mollusc)|whorl]]s 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 (mollusc)|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. [https://www.biodiversitylibrary.org/page/45465590 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] {{source-attribution}}
==Distribution==
Fossils of ''Penion petitianus'' have been found in [[Tertiary period|Tertiary]] strata at [[Coquimbo]], [[Chile]].
==References==
{{Reflist}}
{{Taxonbar|from=Q106161108}}
[[Category:Penion|petitianus]]
[[Category:Gastropods described in 1841]]
{{Use dmy dates|date=April 2026}}
{{Speciesbox
| fossil_range =
| image =
| image_caption = Shell of ''Penion petitianus'' (holotype)
| genus = Penion
| species = petitianus
| authority = (A. d'Orbigny, 1841)
|extinct=yes
| synonyms =
* † ''Fusus petitianus'' A. d'Orbigny, 1841 superseded combination
}}
'''''Penion petitianus''''' is an [[extinct]] [[species]] of [[marine (ocean)|marine]] [[snail]] or [[whelk]], belonging to the true whelk [[family (biology)|family]] [[Austrosiphonidae]]. {{WRMS species|874110|''Penion petitianus'' (A. d'Orbigny, 1841) |26 April 2026}}
==Description==
(Original description in Latin and French) The shell is elongated. The [[Whorl (mollusc)|whorl]]s 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 (mollusc)|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. [https://www.biodiversitylibrary.org/page/45465590 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] {{source-attribution}}
==Distribution==
Fossils of ''Penion petitianus'' have been found in [[Tertiary period|Tertiary]] strata at [[Coquimbo]], [[Chile]].
==References==
{{Reflist}}
{{Taxonbar|from=Q106161108}}
[[Category:Penion|petitianus]]
[[Category:Gastropods described in 1841]]
