†S. aculeatus Henry, 1876
†S. acuminatus Agassiz, 1835
†S. acutus (Agassiz, 1844)
†S. angustus Muenster, 1844
†S. anningae (Maxwell & Stumpf, 2017)
†S. apicalis Agassiz, 1834
†S. breviabdominalis Maxwell et al., 2015
†S. breviconus Plieninger, 1844
†S. calcaratus Griffith, 1977
†S. catalaunicus (Betlan, 1972)
†S. conidens Agassiz, 1837
†S. costasquamosus Rieppel, 1985
†S. costatus Muenster, 1839
†S. curionii (Bellotti, 1857)
†S. daubreei Firtion, 1934
†S. dawaziensis Wu et al., 2009
†S. dayi (Raymond, 1925)
†S. deperditus (Costa, 1862)
†S. dianneae Maxwell et al., 2016
†S. dongusensis Minich, 1992
†S. elegans Stensiö, 1925
†S. elongatus Stensiö, 1925
†S. eximius Minikh, 1982
†S. gigas (Woodward, 1890)
†S. gracilis (Woodward, 1890)
†S. grignae Tintori, 2013
†S. gypsophilus Reis, 1892
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†S. hamiltoni Stensiö, 1925
†S. hauffi (Maxwell & Stumpf, 2017)
†S. huanshanensis Chou & Liu, 1957
†S. indicus de Koninck, 1863
†S. inflexus Eichwald, 1846
†S. intermedius {{aut|(Bassani 1886)
†S. irregularis Oertle, 1928
†S. krambergeri Schlosser, 1918
†S. latifrons Eck, 1865
†S. lepidosteoides Frech, 1903
†S. listroconus Plieninger, 1844
†S. longiconus Plieninger, 1844
†S. longidens Agassiz, 1844
†S. macrocephalus Deecke, 1889
†S. madagascariensis Piveteau, 1945
†S. majiashanensis Tintori et al., 2014
†S. mougeotii Agassiz, 1837
†S. nepalensis Beltan & Janvier, 1978
†S. obrutchevi Minikh, 1981
†S. orientalis Sytchevskaya, 1999
†S. ornatus Stensiö, 1925
†S. osseus (Betlan, 1972)
†S. parvidens Wade, 1935
†S. paucitrichus Rieppel, 1992
†S. piveteaui Beltan, 1968
†S. proximus Minikh, 1981
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†S. rieppeli Maxwell et al., 2015
†S. robustus (Bassani, 1886)
†S. seefeldensis Strand, 1928
†S. semicostatus Muenster, 1839
†S. spinosus Wu et al., 2018
†S. stensioi Lehman, 1952
†S. stoppanii (Bassani, 1886)
†S. striatulus Henry, 1876
†S. striolatus (Bronn 1858)
†S. subulatus Henry, 1876
†S. tenuirostris Muenster, 1839
†S. tertius Minikh, 1982
†S. toxolepis Mutter et al., 2008
†S. ultimus Minich, 1992
†S. vjuschkovi Minikh, 1983
†S. wimani Woodward, 1912
†S. yangjuanensis Wu et al., 2015
†S. yunnanensis Zhang et al., 2010
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