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Nerinea is an extinct
genusIn biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...
of
fossilFossils are the preserved remains or traces of animals , plants, and other organisms from the remote past...
sea snailSea snail is a common name for those snails that normally live in saltwater, marine gastropod molluscs....
s,
marineMarine is an umbrella term. As an adjective it is usually applicable to things relating to the sea or ocean, such as marine biology, marine ecology and marine geology...
gastropod molluscs in the clade Heterobranchia.
The genus is known from the
JurassicThe Jurassic is a geologic period and system that extends from about Mya to Mya, that is, from the end of the Triassic to the beginning of the Cretaceous. The Jurassic constitutes the middle period of the Mesozoic era, also known as the age of reptiles. The start of the period is marked by...
to the
CretaceousThe Cretaceous , derived from the Latin "creta" , usually abbreviated K for its German translation Kreide , is a geologic period and system from circa to million years ago. In the geologic timescale, the Cretaceous follows the Jurassic period and is followed by the Paleogene period of the...
periods.
Species
Species in the genus Nerinea include:
- Nerinea higoensis Shikama & Yui, 1973
- Nerinea koikensis Shikama & Yui, 1973
- Nerinea naumanni Sugiyama & Asao, 1942
- Nerinea rigida Nagao, 1934
- Nerinea? ryofuae Tsuchi & Kagami, 1967
- Nerinea shiidai Shikama & Yui, 1973
- Nerinea somensis Shikama & Yui, 1973
- Nerinea sugiyamai Shikama & Yui, 1942
- Nerinea suprjurensis Voltz from Middle Jurassic
The Middle Jurassic is the second epoch of the Jurassic Period. It lasted from 176-161 million years ago. In European lithostratigraphy, rocks of this Middle Jurassic age are called the Dogger....
, Upper Oolite. PorrentruyPorrentruy is a Swiss municipality and seat of the district of the same name located in the canton of Jura.-Geography:The municipality lies on both sides of the Allaine River, in Ajoie at the foot of the Jura Mountains on the north...
, Switzerland.