Tubospirina
Tubospirina is an extinct genus of fossil sea snails, marine gastropod mollusks in the family Craspedostomatidae. These snails were parasitic-carnivores. They lived in the Silurian Period, Pridoli Age (from 418.7 ± 1.5 to 416 ± 2.8 mya).
Tubospirina | |
---|---|
Tubospirina tubicina from Prague, Jinonice (Czech Republic), at the National Museum (Prague) | |
Scientific classification | |
Kingdom: | |
Phylum: | |
Class: | |
Subclass: | |
(unranked): | clade Neritimorpha[1] |
Family: | |
Genus: | †Tubospirina J. Frýda, 1998[2] |
Etymology
The genus name Tubospirina combines the Latin word tubus, meaning "tube" and the genus name Spirina.[2]
Description
The genus Tubospirina is very similar to the genus Spirina, but it can be distinguished by the dextrally coiled shell with a flatly arched upper side. The shells are large, with a wide aperture and a characteristic ornamentation of rounded costae and interspaces. This new genus has been tentatively placed close to the genus Spirina in the family Craspedostomatidae.[2]
Species
Distribution
This genus has been found in the Silurian of the Czech Republic.
References
- Bouchet, Philippe; Rocroi, Jean-Pierre; Frýda, Jiri; Hausdorf, Bernard; Ponder, Winston; Valdés, Ángel & Warén, Anders (2005). "Classification and nomenclator of gastropod families". Malacologia. Hackenheim, Germany: ConchBooks. 47 (1–2): 1–397. ISBN 3-925919-72-4. ISSN 0076-2997.
- Frýda J. (1998). "New Silurian and Devonian gastropod genera of Bohemia". 地球科學 Earth Science 52(3): 229-234., page 234. PDF.
- Perner J. (1903, 1907, 1911). "Systéme silurien du center de la Bohéme". Vol. 4. Gasteropodes, Tome 1, 2, 3, Praha.