Vexillum cernohorskyi is an extinct species of sea snail, a marine gastropod mollusk, in the family Costellariidae, the ribbed miters.[1]
| Vexillum cernohorskyi | |
|---|---|
| |
| Shell of Vexillum cernohorskyi (holotype) | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | Neogastropoda |
| Superfamily: | Turbinelloidea |
| Family: | Costellariidae |
| Genus: | Vexillum |
| Species: | †V. cernohorskyi
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| Binomial name | |
| †Vexillum cernohorskyi Ladd, 1977
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| Synonyms[1] | |
|
† Vexillum (Costellaria) cernohorskyi Ladd, 1977 | |
Description edit
The length of the shell attains 8.2 mm, its diameter 2.7 mm.
(Original description) The small, slender shell has a fusiform shape. The protoconch consists of about two smooth, glassy whorls, followed by about seven sculptured whorls. The early whorls of the spire are nearly flat, the later whorls slightly more convex. The suture is lightly impressed. The sculpture consists of broad, rounded, slightly curved, axial ribs that are regularly spaced, 10 or 11 on the body whorl. Weak spiral striae are present in the depressions between axial ribs. The aperture is elongate and shorter than spire;.The columella has four inclined folds. Traces of four dark bands of color are discernible on the Body whorl, the highest one thinner than the other three.[2]
Distribution edit
Fossils of this marine species were found in late Miocene strata in the Eniwetok Atoll .
References edit
- ^ a b MolluscaBase eds. (2023). MolluscaBase. Vexillum cernohorskyi Ladd, 1977 †. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=1619094 on 2023-03-16
- ^ Ladd, H.S. (1977). Cenozoic fossil mollusks from western Pacific islands; Gastropods (Eratoidae through Harpidae). U.S. Geological Survey Professional Paper. 533: i–iv, 1–84, pls 1–23
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