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''Semicassis'' is a
/ref>
Fossilworks
/ref> *''Semicassis aldrichi'' Dall 1890 † *''Semicassis angasi'' Iredale 1927 † *''Semicassis deneseplicata'' Martin 1916 † *''Semicassis harpaeformis'' Lamarck 1803 † *''Semicassis labiata'' Perry 1811 † *''Semicassis monilifera'' Sowerby 1846 † *''Semicassis oligocalantica'' Vredenburg 1925 † *''Semicassis ovulum'' Ortmann 1900 † *''Semicassis pyshtensis'' Addicott 1976 † *''Semicassis reclusa'' Guppy 1873 † Fossils of species within this genus have been found all over the world in sediments from Eocene to Quaternary (age range: 37.2 to 0.0 million years ago).
genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...
of medium-sized predatory sea snail
Sea snail is a common name for slow-moving marine gastropod molluscs, usually with visible external shells, such as whelk or abalone. They share the taxonomic class Gastropoda with slugs, which are distinguished from snails primarily by the ...
s, marine
Marine is an adjective meaning of or pertaining to the sea or ocean.
Marine or marines may refer to:
Ocean
* Maritime (disambiguation)
* Marine art
* Marine biology
* Marine debris
* Marine habitats
* Marine life
* Marine pollution
Military
* ...
gastropod
The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda ().
This class comprises snails and slugs from saltwater, from freshwater, and from land. T ...
mollusc
Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (). Around 85,000 extant species of molluscs are recognized. The number of fossil species is esti ...
s in the subfamily Cassinae within the family Cassidae, the helmet snails and bonnet snails.WoRMS : Semicassis; accessed: 30 July 2020/ref>
Species
According to the World Register of Marine Species (WoRMS), the following species with valid names are included within the genus ''Semicassis'': *'' Semicassis adcocki'' (Sowerby III, 1896) *''Semicassis angasi
''Semicassis'' is a genus of medium-sized predatory sea snails, marine gastropod molluscs in the subfamily Cassinae within the family Cassidae, the helmet snails and bonnet snails.
Species
According to the World Register of Marine Species ( ...
'' (Iredale, 1927)
*'' Semicassis bisulcata'' (Schubert & Wagner, 1829)
*'' Semicassis bondarevi'' Mühlhäusser & Parth, 1993
*''Semicassis bulla
''Semicassis'' is a genus of medium-sized predatory sea snails, marine gastropod molluscs in the subfamily Cassinae within the family Cassidae, the helmet snails and bonnet snails.
Species
According to the World Register of Marine Species (WoRMS ...
'' Habe, 1961
*'' Semicassis canaliculata'' (Bruguière, 1792)
* ''Semicassis cancellata
''Semicassis'' is a genus of medium-sized predatory sea snails, marine gastropod molluscs in the subfamily Cassinae within the family Cassidae, the helmet snails and bonnet snails.
Species
According to the World Register of Marine Species ( ...
'' (Lamarck, 1803)
*''Semicassis centiquadrata
''Semicassis'' is a genus of medium-sized predatory sea snails, marine gastropod molluscs in the subfamily Cassinae within the family Cassidae, the helmet snails and bonnet snails.
Species
According to the World Register of Marine Species ( ...
'' (Valenciennes, 1832)
*''Semicassis craticulata
''Semicassis'' is a genus of medium-sized predatory sea snails, marine gastropod molluscs in the subfamily Cassinae within the family Cassidae, the helmet snails and bonnet snails.
Species
According to the World Register of Marine Species ( ...
'' (Euthyme, 1885)
* ''Semicassis decipiens
''Semicassis'' is a genus of medium-sized predatory sea snails, marine gastropod molluscs in the subfamily Cassinae within the family Cassidae, the helmet snails and bonnet snails.
Species
According to the World Register of Marine Species (WoRMS ...
'' (Kilburn, 1980)
* ''Semicassis dorae
''Semicassis'' is a genus of medium-sized predatory sea snails, marine gastropod molluscs in the subfamily Cassinae within the family Cassidae, the helmet snails and bonnet snails.
Species
According to the World Register of Marine Species ( ...
'' (Kreipl & Mühlhäusser, 1996)
* ''Semicassis dougthorni'' Dekkers, 2013
*''Semicassis faurotis'' (Jousseaume, 1888)
* ''Semicassis fernandesi'' (Kilburn, 1975)
* † ''Semicassis fibrata'' (P. Marshall & Murdoch, 1920)
*''Semicassis glabrata'' (Dunker, 1852)
*''Semicassis granulata'' (Born, 1778) - synonym: ''Phalium granulatum'' (Born, 1778)
* † ''Semicassis grateloupi'' (Deshayes, 1853)
*''Semicassis inornata'' (Pilsbry, 1895)
* † ''Semicassis kaawaensis'' (Bartrum & Powell, 1928)
*''Semicassis labiata'' (Perry, 1811)
* † ''Semicassis laevigata'' (Defrance, 1817)
* †''Semicassis lilliei'' (C. A. Fleming, 1943)
* † ''Semicassis marwicki'' (C. A. Fleming, 1943)
*''Semicassis microstoma'' (Martens, 1903)
* † ''Semicassis neumayri'' (Hoernes, 1875)
*''Semicassis paucirugis'' (Menke, 1843)
*''Semicassis pyrum'' (Lamarck, 1822)
*''Semicassis royana'' (Iredale, 1914)
*''Semicassis saburon'' (Bruguière, 1792)
*''Semicassis semigranosa'' (Lamarck, 1822)
*''Semicassis sinuosa'' (Verco, 1904)
* † ''Semicassis skinneri'' (Marwick, 1928)
*''Semicassis sophia'' (Brazier, 1872)
* † ''Semicassis subsulcosa'' (Hoernes & Auinger, 1884)
* † ''Semicassis szilviae'' Kovács & Vicián, 2018
*''Semicassis thachi'' Kreipl, Alf & Eggeling, 2006
*''Semicassis thomsoni'' (Brazier, 1875)
*''Semicassis umbilicata'' (Pease, 1861)
* ''Semicassis undulata'' (Gmelin, 1791)
*''Semicassis westralis'' Kreipl, 1997
*''Semicassis whitworthi'' (Abbott, 1968)
* ''Semicassis zeylanica'' (Lamarck, 1822)
;Species brought into synonymy:
* ''Semicassis cicatricosa'' (Gmelin, 1791): synonym of ''Semicassis granulata'' (Born, 1778)
* ''Semicassis diuturna'' Iredale, 1927: synonym of ''Semicassis bisulcata'' (Schubert & J. A. Wagner, 1829)
* ''Semicassis japonica'' (Reeve, 1848): synonym of ''Semicassis bisulcata'' (Schubert & J. A. Wagner, 1829)
* ''Semicassis miolaevigata'' Sacco, 1890: synonym of ''Semicassis saburon'' (Bruguière, 1792)
* ''Semicassis obscura'' Habe, 1961: synonym of ''Semicassis bulla'' Habe, 1961
* ''Semicassis pauciruge'': synonym of ''Semicassis paucirugis'' (Menke, 1843)
* ''Semicassis persimilis'' Kira, 1955: synonym of ''Semicassis bisulcata'' (Schubert & J. A. Wagner, 1829)
* ''Semicassis pila'' (Reeve, 1848): synonym of ''Semicassis bisulcata'' (Schubert & J. A. Wagner, 1829)
* ''Semicassis salmonea'' Beu, Bouchet & Tröndlé, 2012: synonym of ''Semicassis bulla
''Semicassis'' is a genus of medium-sized predatory sea snails, marine gastropod molluscs in the subfamily Cassinae within the family Cassidae, the helmet snails and bonnet snails.
Species
According to the World Register of Marine Species (WoRMS ...
'' Habe, 1961
Extinct Species
Extinct species within this genus include:/ref> *''Semicassis aldrichi'' Dall 1890 † *''Semicassis angasi'' Iredale 1927 † *''Semicassis deneseplicata'' Martin 1916 † *''Semicassis harpaeformis'' Lamarck 1803 † *''Semicassis labiata'' Perry 1811 † *''Semicassis monilifera'' Sowerby 1846 † *''Semicassis oligocalantica'' Vredenburg 1925 † *''Semicassis ovulum'' Ortmann 1900 † *''Semicassis pyshtensis'' Addicott 1976 † *''Semicassis reclusa'' Guppy 1873 † Fossils of species within this genus have been found all over the world in sediments from Eocene to Quaternary (age range: 37.2 to 0.0 million years ago).
References
* Arthur William Baden Powell, Powell A. W. B. (1979). HarperCollins, William Collins Publishers Ltd, Auckland . Cassidae Gastropod genera Extant Eocene first appearances {{Cassidae-stub