| Ogasawarana obtusa | |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Neritimorpha |
| Order: | Cycloneritida |
| Family: | Helicinidae |
| Genus: | Ogasawarana Wagner, 1905 |
| Species: | O. obtusa |
| Binomial name | |
| Ogasawarana obtusa Chiba, Sasaki, Suzuki & Horikoshi, 2008 | |
Ogasawarana obtusa is an extinct species of snail from Chichi-jima, Ogasawara, Japan. The holotype and paratypes are from 720 years BP. The shell is 4.9 to 5.3 millimetres (0.19 to 0.21 in) in diameter and 2.7 to 2.8 millimetres (0.11 to 0.11 in) in height. It has approximately 3.5 whorls. The surface of the shell is smooth, with fine growth lines and no spiral lines.
References
- ^ Chiba, Staoshi; Tetsuro Sasaki; Hajime Suzuki; Kazuo Horikoshi (2008). "Subfossil Land Snail Fauna (Mollusca) of Central Chichijima, Ogasawara Islands, with Description of a New Species". Pacific Science. 63: 137–145.
- Wagner (1905). Denkschr. Akad. Wiss. Wien 77: 395.
| Taxon identifiers | |
|---|---|
| Ogasawarana obtusa | |
 | This Helicinidae-related article is a stub. You can help Misplaced Pages by expanding it. |