Undulabucania gorbyi (FOSSIL) (Miller, 1892 †) USA, Ohio, Brown
Megalomphala gotlandica (FOSSIL) Peel, 1991 † Sweden, Gotland
Bucania gracillima (FOSSIL) E.F.R.K. Koken, 1896 † Sweden, Dalarna, Rättvik
Grandostoma grande (FOSSIL) (J. Perner, 1903 †) Czech Republic, Beroun
Loxobucania gravida (FOSSIL) (Reed, 1921 †) UK, Scotland, South Ayrshire
Bucania groenlandica (FOSSIL) Peel, 1991 † Canada, Quebec, Anticosti Island
Kokenospira guizhouensis (FOSSIL) Xi, 1974 † China, Qinglong County
Bucania halli (FOSSIL) Ulrich & Scofield, 1897 † Canada, Ontario, Kawartha Lakes
Phragmolites huoliensis (FOSSIL) Endo, 1935 †
Phragmolites hyperboreus (FOSSIL) Troedsson, 1928 †
Salpingostoma imbricatum (FOSSIL) Ulrich & Scofield, 1897 † USA, Iowa, Clinton
Phragmolites imbricatus (FOSSIL) F.B. Meek& A.H. Worthen, 1868 †
Boiotremus incipiens (FOSSIL) (J. Perner, 1903 †) Czech Republic, StÅ™edoĨeský, Praha - západ
Offleya inexpectata (FOSSIL) C.M. Poulsen, 1974 † Canada, Quebec, Anticosti Island
Kokenospira inflata (FOSSIL) (E.F.R.K. Koken, 1897 †) Norway, Oslo
Salpingostoma infundibulum (FOSSIL) Reed, 1921 † UK, England
Tremanotus inopinata (FOSSIL) (J. Perner, 1903 †) Czech Republic, Prague
Salpingostoma inornatum (FOSSIL) Northrop, 1939 †
Goniotremus insectus (FOSSIL) (Frech, 1894 †) Austria
Boiotremus insignis (FOSSIL) (E.F.R.K. Koken, 1889 †) Czech Republic, Beroun
Kokenospira insularis (FOSSIL) E.F.R.K. Koken& J. Perner, 1925 † Norway, Oppland, Vang
Salpingostoma involutum (FOSSIL) E.F.R.K. Koken& J. Perner, 1925 †
Goniotremus involutus (FOSSIL) (Frech, 1894 †)
Loxobucania katoi (FOSSIL) (T. Kobayashi, 1930 †) North Korea, Chunghway
Salpingostoma kentuckyense (FOSSIL) Ulrich & Scofield, 1897 † USA, Kentucky, Jessamine
Salpingostoma kokeni (FOSSIL) Teichert, 1932 † Estonia, Hiiu, Pühalepa
Boiotremus kosovensis (FOSSIL) Horný, 1963 † Czech Republic, Beroun
Kokenospira lateralis (FOSSIL) (d'Eichwald, 1860 †) Estonia, Harju, Harku
Kokenospira latidorsata (FOSSIL) Reed, 1921 †
Megalomphala latissima (FOSSIL) E.F.R.K. Koken, 1897 †
Salpingostoma latum (FOSSIL) Foerste, 1924 † Canada, Ontario, Lake Hurron
Loxobucania lindsleyi (FOSSIL) (Safford, 1869 †) USA, Iowa, Clinton
Phragmolites lindstroemi (FOSSIL) (E.F.R.K. Koken& J. Perner, 1925 †) Norway, Oslo
Kokenospira lingualis (FOSSIL) (Salter & Aveline,1854 †) UK, Scotland, South Ayrshire
Salpingostoma locator (FOSSIL) (d''Eichwald, 1860 †) Estonia, Lääne-Viru