Guraleus janjukiensis
| Guraleus janjukiensis Temporal range:
| |
|---|---|
| Holotype from Auckland War Memorial Museum | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | Neogastropoda |
| Family: | Mangeliidae |
| Genus: | Guraleus |
| Species: | †G. janjukiensis
|
| Binomial name | |
| †Guraleus janjukiensis A. W. B. Powell, 1944
| |
Guraleus janjukiensis is an extinct species of sea snail, a marine gastropod mollusc, in the family Mangeliidae.[2] 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:
Ovate-fusiform; whorls strongly convex, not shouldered. Sculptured with heavy rounded axials, 12 per whorl; extending from upper suture completely over base. The sinus area, extending a little more than one third down from the upper suture on the spire-whorls, is delicately sculptured with about 10 very faint threads crossed by equally fine axial hair threads following the shallow concavity of the sinus. Below the sinus area to the lower suture there are 10 narrow crisp threads, and about 30 on the body-whorl. Protoconch polygyrate, conic, of 31⁄2 smooth whorls with minute exserted tip, followed by a half whorl of fine arcuate brephic axials.[3]
The holotype of the species measures 5.75 mm (0.226 in) in length and has a diameter of 2.7 mm (0.11 in).[3]
Taxonomy
The species was first described by A. W. B. Powell in 1944.[3] The holotype was collected at an unknown date prior to 1945 from Torquay, Victoria, and is held in the collections of Auckland War Memorial Museum.[4][5]
Distribution
This extinct marine species occurs in early Miocene strata of the Port Phillip Basin of Victoria, Australia, including the Puebla Formation.[4][1]
References
- ^ a b 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.
- ^ Guraleus janjukiensis A. W. B. Powell, 1944 †. Retrieved through: World Register of Marine Species on 12 January 2026.
- ^ a b c 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. This article incorporates text from this source, which is under a CC BY 4.0 license.
- ^ a b 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. OCLC 1550165130. Wikidata Q135397912.
- ^ "Guraleus janjukiensis". Collections Online. Auckland War Memorial Museum. Retrieved 12 January 2026.