Hauturua exuta

Hauturua exuta Temporal range: early Miocene PreꞒ Ꞓ O S D C P T J K Pg N
Holotype from Auckland War Memorial Museum
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Caenogastropoda
Order:	Neogastropoda
Family:	Drilliidae
Genus:	Hauturua
Species:	†H. exuta
Binomial name
†Hauturua exuta (A. W. B. Powell, 1944)
Synonyms [1]
Syntomodrillia exutaA. W. B. Powell, 1944 Syntomodrillia (Hauturua) exutaA. W. B. Powell, 1944

Hauturua exuta is an extinct species of sea snail, a marine gastropod mollusc in the family Drilliidae. ^[1] Fossils of the species date to the early Miocene, and occurs in the strata of the Gippsland Basin of Victoria, Australia.

Description

Reverse view of holotype

In the original description, Powell described the species as follows:

Shell moderately large, proportionately broad, strongly axially tuberculate, but entirely lacking spiral sculpture, even on the neck. Axtials broadly rounded, 13-14 per whorl, stopped at the angulate-periphery, which is situated at the middle of the whorls; becoming obsolete before reaching base. Subsutural fold obsolete. Shoulder broadly and shallowly excavated. Parietal callus-pad very heavy. ^[2]

The holotype of the species measures 15.6 mm (0.61 in) in height and 6 mm (0.24 in) in diameter. ^[2]

Taxonomy

The species was first described by A.W.B. Powell in 1944, using the name Syntomodrillia (Hauturua) exuta. ^[2] By at least 2011, Hauturua was being treated as a genus, ^[3] making the species' accepted name Hauturua exuta. The holotype was collected from the Gippsland Lakes at an unknown date prior to 1944, and is held by the Auckland War Memorial Museum. ^{[4] [5]}

Distribution

This extinct marine species dates to the early Miocene, and occurs in the strata of the Gippsland Basin of Victoria, Australia, from the Jemmys Point Formation. ^{[4] [6]}

References

1. Hauturua exuta (A. W. B. Powell, 1944) † . 17 November 2025. Retrieved through: World Register of Marine Species .
2. Powell, A. W. B. (1944). "The Australian Tertiary Mollusca of the Family Turridae". Records of the Auckland Institute and Museum . 3: 3–68. ISSN   0067-0464. JSTOR   42905993. Wikidata   Q58676624.
3. Bouchet, P.; Kantor, Yu. I.; Sysoev, A.; Puillandre, N. (26 July 2011). "A new operational classification of the Conoidea (Gastropoda)". Journal of Molluscan Studies . 77 (3): 273–308. doi:10.1093/MOLLUS/EYR017. ISSN   0260-1230. Wikidata   Q54552868.
4. Blom, Wilma M. (2025). "Annotated Catalogue of Fossil and Extant Molluscan Types in the Auckland War Memorial Museum". Bulletin of the Auckland Museum . 22. doi:10.32912/BULLETIN/22. ISSN   1176-3213. Wikidata   Q135397912.
5. "Hauturua exuta". Collections Online. Auckland War Memorial Museum . Retrieved 17 November 2025.
6. Darragh, Thomas A. (August 2024). "A checklist of Australian marine Cenozoic Mollusca". Memoirs of Museum Victoria . 83: 37–206. doi:10.24199/J.MMV.2024.83.02. ISSN   1447-2546. Wikidata   Q136396722.