Traits Taxon list
Alanstukella rossica (Stuckenberg, 1905) †
Amaurotoma kizilkiensis B. K. Likharev, 1967 †
Archaeopraga pinnaeformis (Perner, 1903) †
Archinacella norwegica (Koken, 1925) †
Archinacellopsis patelliformis (Hall, 1847) †
Asterohelix spinicosta (Stoliczka, 1861) †
Bassotrochus angulatus Tassell, 1978 †
Beshtashella tortilis Missarzhevsky, 1981 †
Biarmeaspira angulata (Netchaev, 1894) †
Biarmeaspira arizonensis (Winters, 1963) †
Biarmeaspira jusupovi Mazaev, 2015 †
Biarmeaspira multilineata (Batten, 1989) †
Biarmeaspira striata Mazaev, 2015 †
Biarmeaspira verideclinata Mazaev, 2006 †
Biarmeaspira yakowlewi (B. K. Likharev, 1967) †
Bobellis oliveri Peel, 2019 †
Callistadia bella Knight, 1945 †
Callistadia qubuergaensis H.-Z. Pan & S.-Z. Shen, 2008 †
Cenocampoides scalaris (A. d'Orbigny, 1842) †
Chepultapecia leiosomella (Sardeson, 1896) † (uncertain > unassessed )
Colpomphalus altus (A. d'Orbigny, 1853) †
Colpomphalus dupinianus (A. d'Orbigny, 1842) †
Commozonispira lirata X.-D. Qiao, 1983 †
Coronopsis muliensis Y.-T. Pan, 1978 † (uncertain > unassessed )
Coronopsis vagrans Waterhouse, 1963 †
Costatohelix guembeli (Ammon, 1893) †
Cylicioscapha texana (Yochelson, 1956) †
Discohelix (Discosolis) retifera Dall, 1892 † represented as Discohelix retifera Dall, 1892 accepted as Pseudotorinia retifera (Dall, 1892) accepted as Pseudotorinia architae-group
Discohelix alternatum Gerasimov, 1992 †
Discohelix bandeli Schröder, 1995 † accepted as Adeuomphalus bandeli (Schröder, 1995) †
Discohelix calculiformis Dunker, 1847 †
Discohelix martinianum (A. d'Orbigny, 1842) †
Discohelix plicatella Cossmann, 1888 † accepted as Orbitestella plicatella (Cossmann, 1888) †
Discohelix retifera Dall, 1892 accepted as Pseudotorinia retifera (Dall, 1892) accepted as Pseudotorinia architae-group
Discotheca cycla X.-D. Qiao, 1983 †
Eocryphispira basicostatis X.-H. Yu, 1987 †
Euconia etna (Billings, 1865) †
Eunema bicarinata Hamlin, 1884 † (uncertain > unassessed )
Euomphalus cornudanus (Shumard, 1859) †
Euomphalus jiangyouensis Y.-T. Pan, 1978 † (uncertain > unassessed )
Euomphalus kaibabensis Chronic, 1952 †
Euomphalus latus Y.-T. Pan, 1978 † (uncertain > unassessed )
Euomphalus majiaobaensis Y.-T. Pan, 1978 † (uncertain > unassessed )
Euomphalus marginatiformis (B. K. Likharev, 1967) †
Euomphalus marginatus Eichwald, 1860 †
Euomphalus minutus Zieten, 1832 † accepted as Coelodiscus minutus (Zieten, 1832) †
Euomphalus moniliferus Romanovsky, 1890 †
Euomphalus peskensis (Mazaev, 1994) †
Euomphalus pirochiensis (Mazaev, 1994) †
Euomphalus solariformis Delpey, 1941 † accepted as Dichostasia solariformis (Delpey, 1941) †
Goldfussoceras circinalis (Goldfuss, 1844) †
Grantlandispira christiei Peel, 1984 †
Holopella antiqua (Münster, 1840) †
Holopella gracilior McCoy, 1851 †
Holopella lineata (Münster, 1840) † (uncertain > taxon inquirendum )
Isfarispira septata Gubanov, Peel & Pianovskaya, 1995 †
Jalaisia guerangeri (A. d'Orbigny, 1842) †
Kistasella spiralis Missarzhevsky, 1989 †
Klavlia klavlia Mazaev, 2018 †
Klavlia minuta Mazaev, 2020 †
Labrocuspis nodosa Heidecker, 1959 †
Leptomphalus micidus (Yochelson, 1956) †
Loxonema (Stylonema) potens Perner, 1907 † accepted as Stylonema potens Perner, 1907 †
Loxonema gregaria (J. de C. Sowerby, 1839) †
Loxonema parva Stauffer & Schroyer, 1920 † accepted as Anthracopupa parva (Stauffer & Schroyer, 1920) †
Lytospira junlianensis Y.-T. Pan, 1978 † (uncertain > unassessed )
Manitobiella goniostoma (Whiteaves, 1890) †
Medfrazyga convexa Nützel, 2012 †
Medfrazyga rectecostata Nützel, 2012 †
Medfrazyga zaitsevi Mazaev, 2015 †
Mellarium mutchi Waterhouse, 1960 †
Mellarium nodulosum Waterhouse, 1960 †
Omospira magna G. Wang, 1978 † (uncertain > unassessed )
Omphalocirrus kaukensis Gubanov, Blodgett & Lytochkin, 1995 †
Omphalonema grandiosum Y.-T. Pan, 1978 † (uncertain > unassessed )
Omphalonema intermedium Y.-T. Pan, 1978 † (uncertain > unassessed )
Omphalonema magnum Y.-T. Pan, 1978 † (uncertain > unassessed )
Omphalotrochus barchatovae B. K. Likharev, 1974 †
Omphalotrochus canaliculatus (Trautschold, 1879) †
Omphalotrochus kalitvaensis B. K. Likharev, 1940 †
Omphalotrochus sulensis B. K. Likharev, 1974 †
Omphalotrochus timanicus B. K. Likharev, 1974 †
Omphalotrochus uerjagensis B. K. Likharev, 1974 †
Omphalotrochus uralicus B. K. Likharev, 1974 †
Orecopia inopinata Mazaev, 2019 †
Orecopia mccoyi (Walcott, 1884) †
Oriostoma sarydalchaensis Gubanov, Blodgett & Lytochkin, 1995 †
Palaeozygopleura vostokovae Horný, 1955 †
Pelecyogyra fezouataensis Ebbestad & Lefebvre, 2015 †
Peverilia perisphincta Arkell, 1941 †
Phymatifer giganteus Y.-T. Pan, 1978 † (uncertain > unassessed )
Platyschisma mccoyi Walcott, 1884 † accepted as Orecopia mccoyi (Walcott, 1884) †
Pollicina annulata Koken, 1895 †
Pollicina corniculum (Eichwald, 1860) †
Pollicina crassitesta Koken, 1897 †
Pollicina cyathina Koken, 1897 †
Pycnomphalus obesus Lindström, 1884 †
Pycnotrochus viator Barrande, 1903 †
Ruedemannia lirata (Ulrich, 1897) †
Ruedemannia tienshanica Gubanov, Blodgett & Lytochkin, 1995 †