1 Name Source Sys-Number Systematics Phylum 14 Mollusca (Explanations see mollusca-database.eu) Classis Gastropoda, Cuvier 1795 SYS001:223, SYS004:206 1 Paleozoic Molluscs unassigned, + SYS004:241 100 (Now Classis Helcionelloida, Peel 1991) TPD, Wikipedia Ordo Helcionelloida, Wenz 1938, + TPD 100.0-3 Superfamilia Helcionelloidea, Wenz 1938, + TPD 100.0 Familia Helcionellidae, Wenz 1938, + TPD 100.00 Familia Stenothecidae, Runnegar & Jell 1980, + SYS004:241 100.01 Subfamilia Stenothecinae, Runnegar & Jell 1980, + SYS004:241 100.010 Subfamilia Watsonellinae, Parkhaev 2001, + SYS004:241 100.011 Superfamilia Pelagielloidea, Knight 1956, + SYS001:914, SYS004:241 100.1 Familia Pelagiellidae, Knight 1956, + SYS001:914, SYS004:241 100.10 Familia Aldanellidae, Linsley & Kier 1982, + SYS004:241 100.11 Superfamilia Yochelcionelloidea, Runnegar & Jell 1976, + SYS004:241 100.2 Familia Yochelcionellidae, Runnegar & Jell 1976, + SYS004:241 100.20 Familia Trenellidae, Parkhaev 2001, + SYS004:241 100.21 Superfamilia Scenelloidea, S.A. Miller 1889, + SYS004:241, TPD 100.3 (Now Classis Tergomya, Horný 1965, +) Familia Scenellidae, S.A. Miller 1889, + SYS004:241 100.30 Familia Coreospiridae, Knight 1947, + SYS001:224, SYS002:I172, SYS004:241 100.31 Familia Igarkiellidae, Parkhaev 2001, + SYS004:241 100.32 Paleozoic molluscs with isotrophically coiled shells SYS004:241, AUS15:69 100.4 unassigned (Gastropoda or Monoplacophora), + Superfamilia Bellerophontoidea, M’Coy 1851, + SYS001:224, SYS004:241 100.4 Familia Bellerophontidae, M’Coy 1852, + (“Archaeogastropoda”, Thiele 1925) SYS001:226, SYS004:241, 192 100.40 Subfamilia Bellerophontinae, M’Coy 1852, + SYS001:228, SYS004:241 100.400 Subfamilia Bucanopsinae, Wahlmann 1992, + SYS004:241 100.401 Subfamilia Knightitinae, Knight 1956, + SYS001:229, SYS004:241 100.402 Subfamilia Cymbulariinae, Horný 1963, + SYS004:241 100.403 Subfamilia Trapidodiscidae, Knight 1956, + AS31:32 100.404 Familia Sinuitidae, Dall in Zittel-Eastman 1913, + SYS001:224, SYS004:241 100.41 Subfamilia Sinuitinae, Dall in Zittel-Eastman 1913, + SYS001:224, GER15:3, SYS004:241 100.410 Subfamilia Aiptospirinae, Wang 1980, + SYS004:241 100.411 Familia Buccaniidae, Ulrich & Scofield 1897, + SYS001:226, GER15):11, SYS004:241 100.42 Subfamilia Buccaniinae, Ulrich & Scofield 1897, + SYS001:226, SYS004:241 100.420 Subfamilia Salpingostomatinae, Koken 1925, + SYS001:227, SYS004:241 100.421 Subfamilia Plectonotinae, Boucot & Yochelson 1966, + SYS004:241 100.422-423 Tribus Plectonotini, Boucot & Yochelson 1966, + SYS004:241 100.422 Tribus Boucotonotini, Frýda 1999, + SYS004:241 100.423 Subfamilia Undulabucaniinae, Wahlmann 1992, + SYS004:241 100.424 Familia Tremanotidae, Naef 1913, + AM04:108, SYS004:241 100.43 Familia Euphemitidae, Knight 1956, + SYS001:225, SYS004:241 100.44 Subfamilia Euphemitinae, Knight 1956, + SYS004:241 100.440 Subfamilia Paleuphemitinae, Frýda 1999, + SYS004:241 100.441 Familia Pterothecidae, P.Fischer 1883, + SYS004:241 100.45 Subfamilia Pterothecinae, P.Fischer 1883, + SYS001:228, SYS004:241 100.450 Subfamilia Carinaropsinae, Ulrich & Scofield 1897, + SYS001:227, SYS004:241 100.451 Subfamilia Pedasiolidae, Wahlmann 1992, + SYS004:241 100.452 Familia Tropidodiscinae, Knight 1956, + SYS001:226, SYS004:241 100.46 Familia Bucanellidae, Koken 1925, + SYS001:225, SYS004:241 100.47 Familia Bellerophontoidea unassigned SYS001:229 100.49 Paleozoic molluscs with anisotrophically coiled shells SYS004:241 100.5-6 unassigned (Gastropoda ?), + Superfamilia Euomphaloidea, White 1877 or Koninck 1881, + SYS001:232, SYS004:241 100.5 Familia Euomphalidae, White 1877 or Koninck 1881, + SYS001:232, SYS004:241 100.50 Subfamilia Euomphalinae, … … 100.500-502 Subfamilia Odontomariinae, Frýda, Heidelberger & Blottgett 2006 GER119:23 100.503 Familia Helicotomidae, Wenz 1938, + SYS001:234, SYS004:241 100.51 Familia Omphalotrochidae, Knight 1945, + SYS001:235, SYS004:242 100.52 Familia Lesueurillidae, P.J. Wagner 2002 SYS004:242 100.53 Familia Omphalocirridae, Wenz 1938, + SYS004:242 100.54 Familia Euomphalidae unassigned TPD 100.59 Superfamilia Macluritoidea, Carpenter 1861 or Fischer 1885, + SYS001:229, SYS004:242 100.6 Familia Macluritidae, Carpenter 1861 or Fischer 1885, + SYS001:230, SYS004:242 100.60 Other Paleozoic Molluscs unassigned SYS004:241 100.9 Familia Khairkhaniidae, Missarzhevsky 1989, + SYS004:241 100.90 (Now in Classis Helcionelloidea, Ordo Khairkhaniformes, Parkhaev 2001 http://en.wikipedia.org/wiki/Helcionelloida) Familia Patelloconidae, Frýda 1998, + SYS004:241 100.91 Genera inquirenda (Archaeogastropoda), + SYS001:349, SYS002:I308 100.92 2 Name Source Sys-Number Basal taxa that are certainly Gastropoda, + SYS004:242 101 Superfamilia not allocated SYS004:242 101.0-1 Familia Anomphalidae, Wenz 1938, + SYS001:274, SYS004:242 101.00 Familia Codonocheilidae, S.A. Miller 1889, + SYS001:276, SYS004:242 101.01 Familia Crassimarginatidae, Frýda, Blodgett & Lenz 2002 SYS004:242 101.02 Familia Holopeidae, Cossmann 1908, + SYS001:270, SYS004:242 101.03 Subfamilia Holopeinae, Cossmann 1908, + SYS001:270, SYS004:242 101.030 Subfamilia Gyronematinae, Knight 1956, + SYS001:271, SYS004:242 101.031 Familia Isospiridae, Wangberg-Eriksson 1964, + SYS004:242 101.04 Familia Paraturbinidae, Cossmann 1916, + SYS001:349, SYS004:242 101.05 Familia Planitrochidae, Knight 1956, + SYS001:323, 347, SYS004:242 101.06 Familia Pragoserpulinidae, Frýda 1998, + SYS001:914, SYS004:242 101.07 Familia Pseudophoridae, S.A.Miller 1889, + SYS001:347, SYS004:242 101.08 Familia Raphistomatidae, Koken 1896, + SYS001:258, GER15:14, SYS004:242 101.09 Subfamilia Raphistomatinae, Koken 1896, + SYS001:258, SYS002:I200 101.090 Subfamilia Liospirinae, Knight 1956, + SYS001:259, SYS002:I201 101.091 Subfamilia Omospirinae, Wenz 1938, + SYS001:259, SYS002:I201 101.092 Familia Rhytidopilidae, Starovogatov 1976, + SYS004:242 101.10 Familia Scoliostomatidae, Frýda, Blodgett & Lenz 2002, + AM44:119, SYS004:242, SYS118:249 101.11 Subfamilia Scoliostomatinae, Frýda, Blodgett & Lenz 2002, + SYS004:242, SYS118:249 101.110 Subfamilia Mitchelliinae, Frýda, Blodgett & Lenz 2002, + SYS004:242, SYS118:249 101.111 Familia Sinuopeidae, Wenz 1938, + SYS001:257, SYS004:242 101.12 Subfamilia Sinuopeinae, Wenz 1938, + SYS001:257, SYS004:242 101.120 Subfamilia Platyschismatinae, Knight 1956, + SYS001:257, SYS004:242 101.121 Subfamilia Turbonellininae, Knight 1956, + SYS001:257, SYS004:242 101.122 Familia Yuopisthonematidae, Nützel 2017, + SYS004:242 101.19 pro Opisthonematidae, Yu 1976, +, non val Superfamilia Clisospiroidea +, S.A.Miller 1889, + SYS001:346, SYS004:242 101.2 Familia Clisospiridae, S.A.Miller 1889, + SYS001:346, SYS004:242 101.20 Subfamilia Clisospirinae, S.A.Miller 1889, + SYS001:347, SYS004:242 101.200 Subfamilia Atracurinae, Horný 1964, + SYS004:242 101.201 Subfamilia Trochoclisinae, Horný 1964, + SYS004:242 101.202 Superfamilia Onychochiloidea, Koken 1925 + SYS004:242, SYS086AM56:264 101.3 Familia Onychochilidae, Koken 1925, + SYS001:230, SYS004:242 101.30 Subfamilia Onychochilinae, Koken 1925, + SYS001:230, SYS004:242 101.300 Subfamilia Scaevogyrinae, Wenz 1938, + SYS001:231, SYS004:242 101.301 Subfamilia Hyperstropheminae, Horný 1964, + SYS004:242 101.302 Superfamilia Loxonematoidea, Koken 1889, + SYS001:467, SYS004:242 101.4 Familia Loxonematidae, Koken 1889, + SYS001:467, SYS004:242 101.40 Familia Palaeozygopleuridae, Horný 1955, + SYS001:468, SYS004:242 101.41 Superfamilia Ophiletoidea, Koken 1907, + SYS004:242 101.5 Familia Ophiletidae, Knight 1956, + SYS001:258, SYS004:242 101.50 Superfamilia Straparollinoidea, P.J. Wagner 2002, + SYS004:242 101.6 Familia Straparollinidae, P.J. Wagner 2002, + SYS004:242 101.60 Superfamilia Trochonematoidea +, Zittel 1895 SYS001:269, SYS004:242 101.7 Familia Trochonematidae, Zittel 1895, + SYS001:269, SYS004:242 101.70 Familia Lophospiridae, Wenz 1938, + SYS001:262, SYS004:242 101.71 Clade Patellogastropoda, Lindberg 1986 SYS004:242 102 Superfamilia Patelloidea, Rafinesque 1815 (“Archaeogastropoda”, Thiele 1925) SYS001:236, SYS004:242, 192 102.0 Familia Patellidae, Rafinesque 1815 SYS001:239, SYS004:242 102.00 Superfamilia Neolepetopsoidea, McLean 1990 SYS004:243 102.1 Familia Neolepetopsidae, McLean 1990 SYS004:243 102.10 Familia Lepetopsidae, McLean 1990 SYS004:243 102.11 Familia Damilinidae, Horný 1961 SYS004:243 102.12 Superfamilia Nacelloidea, Thiele 1891 SYS004:242 102.2 Familia Nacellidae, Thiele 1891 SYS001:241, SYS004:242 102.20 Superfamilia Lottoidea, Gray 1840 SYS004:242 102.3 Familia Lottiidae, J.E. Gray 1840 SYS001:238, SYS004:242 102.30 Subfamilia Lottiinae, J.E. Gray 1840 SYS001:238, SYS004:243 102.300-301 Tribus Lottiini, Gray 1840 SYS001:238, SYS004:243 102.300 Tribus Scurriini, Lindberg 1988 SYS001:238, SYS004:243 102.301 Subfamilia Patelloidinae, Chapman & Gabriel 1923 SYS001:239, FRK30:586, SYS004:243 102.302 Familia Acmaeidae, Forbes 1850 or Carpenter 1857 SYS001:236, FRK30:586, SYS004:243 102.31 Subfamilia Acmaeinae, Forbes 1850 or Carpenter 1857 SYS001:237, FRK30:586, SYS004:243 102.310 Subfamilia Pectinodontinae, Pilsbry 1891 SYS001:237, SYS004:243 102.311 Subfamilia Rhodopetalinae, Lindberg 1981 SYS001:239, SYS004:243 102.312 Familia Lepetidae, Dall 1869 SYS001:241, SYS004:243 102.32 Clade Cocculiniformia, Haszprunar 1987 SYS001:243, SYS004:245 103 Superfamilia Cocculinoideaa, Dall 1882 (“Archaeogastropoda”, Thiele 1925) SYS001:243, SYS004:245,192 103.0 Familia Cocculinidae, Dall 1882 SYS001:243, SYS004:245 103.00 Familia Bathysciadiidae, Dautzenberg & H. Fischer 1900 SYS001:243, SYS004:245 103.01 Clade