Acanthopupa Wenz, 1914 † (additional source)
Achatina buccinula Grateloup, 1828 † (status source)
Anadromus F. Sandberger, 1870 † (basis of record)
Apula (Steklovia) Schlickum & Strauch, 1972 † accepted as Apula C. R. Boettger, 1909 † (source of synonymy)
Archaegopis Wenz, 1914 † (additional source)
Archaeoplecta Gude, 1911 † (additional source)
Bulimus complanatus Reuss, 1849 † accepted as Palaeomastus complanatus (Reuss, 1849) † (new combination reference)
Canariella disciformis (Wenz, 1919) † accepted as Miodiscula disciformis (Wenz, 1919) † (new combination reference)
Canariella laxecostulata (F. Sandberger, 1871) † accepted as Laxecostula laxecostulata (F. Sandberger, 1871) † (status source)
Clausilia (Disjunctaria) O. Boettger, 1877 † accepted as Disjunctaria O. Boettger, 1877 † (status source)
Coelostele eocaena Oppenheim, 1895 † accepted as Coilostele eocena Oppenheim, 1895 † (additional source)
Coneulota Pfeffer, 1930 † (basis of record)
Coneulota diarti (Cossmann, 1907) † (basis of record)
Coxiola Pfeffer, 1930 † (additional source)
Dentellocaracolus Oppenheim, 1890 † (basis of record)
Dentellocaracolus declivis (F. Sandberger, 1870) † (basis of record)
Discus (Calogoniodiscus) Pfeffer, 1930 † accepted as Calogoniodiscus Pfeffer, 1930 † (additional source)
Disjunctaria O. Boettger, 1877 † (additional source)
Disjunctariini H. Nordsieck, 2014 † (original description)
Distoechia Crosse, 1890 † accepted as Cylindrellina Munier-Chalmas, 1884 † (source of synonymy)
Drepanostoma nautiliformis Porro, 1836 accepted as Drepanostoma nautiliforme Porro, 1836 (additional source)
Elona kowalczyki Schlickum & Strauch, 1972 † accepted as Puisseguria (Pseudelona) kowalczyki (Schlickum & Strauch, 1972) † represented as Puisseguria kowalczyki (Schlickum & Strauch, 1972) † (new combination reference)
Eoplicadomus Hrubesch, 1965 † (additional source)
Eucobresia antinivalis Schlickum & Strauch, 1979 † (status source)
Eucobresia forcarti Schlickum & Geissert, 1980 † (status source)
Frechenia (Frechenia) reichenbachi Schlickum & Strauch, 1971 † represented as Frechenia reichenbachi Schlickum & Strauch, 1971 † (status source)
Frechenia ducrosti (Locard, 1883) † (basis of record)
Frechenia nayliesi (Michaud, 1855) † (basis of record)
Frechenia reichenbachi Schlickum & Strauch, 1971 † (basis of record)
Frechenia rhenana H. Nordsieck, 2014 † (original description)
Goniodiscus wenzi Pfeffer, 1930 † accepted as Pleurodiscoides (Oligopleurodiscus) wenzi (Pfeffer, 1930) † represented as Pleurodiscoides wenzi (Pfeffer, 1830) † (new combination reference)
Gosavidiscus Hrubesch, 1965 † (additional source)
Granoennea Wenz, 1920 † accepted as Argna Cossmann, 1889 (source of synonymy)
Helicodonta (Caracollina) disciformis Wenz, 1919 † accepted as Miodiscula disciformis (Wenz, 1919) † (new combination reference)
Helix (Chloraea) proserpina Oppenheim, 1890 † accepted as Dentellocaracolus declivis (F. Sandberger, 1870) † (source of synonymy)
Helix (Fruticicola) subvillosa F. Sandberger, 1858 † accepted as Hochheimia subvillosa (F. Sandberger, 1858) † (new combination reference)
Helix (Parachloraea) F. Sandberger, 1873 † accepted as Parachloraea F. Sandberger, 1873 † (status source)
Helix (Patula) falcifera O. Boettger, 1870 † accepted as Pleurodiscoides (Pleurodiscoides) falcifera (O. Boettger, 1870) † represented as Pleurodiscoides falcifera (O. Boettger, 1870) † (new combination reference)
Helix bernardii Michaud, 1862 † accepted as Protodrepanostoma bernardii (Michaud, 1862) † (new combination reference)
Helix chaixi [sic] † accepted as Mesodontopsis chaixii (Michaud, 1855) † (status source)
Helix chaixii Michaud, 1855 † accepted as Mesodontopsis chaixii (Michaud, 1855) † (new combination reference)
Helix godarti Michaud, 1855 † accepted as Prosoosia godarti (Michaud, 1855) † (new combination reference)
Helix insignis Zieten, 1832 † accepted as Joossia insignis (Zieten, 1832) † (new combination reference)
Helix jourdani Michaud, 1862 † accepted as Retinella (Lyrodiscus) jourdani (Michaud, 1862) † represented as Retinella jourdani (Michaud, 1862) † (new combination reference)
Helix lapicidella Thomä, 1845 † accepted as Pachycarocollina bouilletii (de Boissy, 1840) † (source of synonymy)
Helix leptoloma F. Sandberger, 1858 † accepted as Leucochroopsis leptoloma (F. Sandberger, 1858) † (new combination reference)
Helix ludovici Noulet, 1854 † accepted as Mesodontopsis ludovici (Noulet, 1854) † (additional source)
Helix maguntina Deshayes, 1832 † accepted as Palaeotachea maguntina (Deshayes, 1832) † (additional source)
Helix nayliesi Michaud, 1855 † accepted as Frechenia nayliesi (Michaud, 1855) † (new combination reference)
Helix osculum Thomä, 1845 † accepted as Klikia osculum (Thomä, 1845) † (new combination reference)
Helix pseudohyalinia Sacco, 1886 † accepted as Soosia taramellii (Sacco, 1886) † (source of synonymy)
Helix subsulcosa Thomä, 1845 † accepted as Palaeotachea subsulcosa (Thomä, 1845) † (new combination reference)
Helix thomaeana A. Braun, 1851 † accepted as Oxychilus deplanatus (Thomä, 1845) † (status source)
Hyalinia (Gyralina) circumscisa Gottschick, 1920 † accepted as Retinella (Lyrodiscus) circumscisa (Gottschick, 1920) † represented as Retinella circumscisa (Gottschick, 1920) † (new combination reference)
Hygromia (Trichiopsis) C. R. Boettger, 1909 † accepted as Leucochroopsis O. Boettger, 1908 † (source of synonymy)
Joossia insignis (Zieten, 1832) † (basis of record)
Josephinella thiedei Schlickum & Strauch, 1972 † accepted as Paradrobacia thiedei (Schlickum & Strauch, 1972) † (new combination reference)
Klikia (Steklovia) Schlickum & Strauch, 1972 † accepted as Apula C. R. Boettger, 1909 † (source of synonymy)
Klikia osculum (Thomä, 1845) † (basis of record)
Lauria minax O. Boettger, 1889 † accepted as Minacilla minax (O. Boettger, 1889) † (new combination reference)
Leptaxis aziospudasta (Filhol, 1877) † accepted as Pseudoleptaxis aziospudasta (Filhol, 1877) † (new combination reference)
Leptaxis bulbulus (F. Sandberger, 1873) † accepted as Pseudoleptaxis bulbulus (F. Sandberger, 1873) † (new combination reference)
Leptaxis fabrei (F. Sandberger, 1873) † accepted as Pseudoleptaxis fabrei (F. Sandberger, 1873) † (new combination reference)
Leptaxis raulini (Noulet, 1854) † accepted as Pseudoleptaxis raulini (Noulet, 1854) † (new combination reference)
Leucochroopsis (Palaeotrichia) H. Nordsieck, 2014 † accepted as Hochheimia Harzhauser & Neubauer, 2021 † (original description)
Leucochroopsis (Palaeotrichia) lemani (Brongniart, 1810) † accepted as Leucochroopsis lemani (Brongniart, 1810) † (basis of record)
Leucochroopsis (Palaeotrichia) subvillosa (F. Sandberger, 1858) † accepted as Hochheimia subvillosa (F. Sandberger, 1858) † (basis of record)
Leucochroopsis leptoloma (F. Sandberger, 1858) † (basis of record)
Leucochroopsis valentinensis (Fontannes, 1880) † (basis of record)
Lyrodiscus (Riedeliella) Schlickum & Strauch, 1975 † accepted as Retinella (Riedeliella) Schlickum & Strauch, 1975 † represented as Retinella P. Fischer, 1877 (basis of record)
Lyrodiscus (Riedeliella) circumscisus (Gottschick, 1920) † accepted as Retinella (Lyrodiscus) circumscisa (Gottschick, 1920) † represented as Retinella circumscisa (Gottschick, 1920) † (basis of record)
Lyrodiscus (Riedeliella) circumscisus francofurtanus (Wenz, 1922) † accepted as Retinella (Lyrodiscus) circumscisa francofurtana (Wenz, 1922) † represented as Retinella circumscisa francofurtana (Wenz, 1922) † (basis of record)
Lyrodiscus (Riedeliella) jourdani (Michaud, 1862) † accepted as Retinella (Lyrodiscus) jourdani (Michaud, 1862) † represented as Retinella jourdani (Michaud, 1862) † (basis of record)
Lyrodiscus subcellarius (Thomä, 1845) † accepted as Retinella (Lyrodiscus) subcellaria (Thomä, 1845) † represented as Retinella subcellaria (Thomä, 1845) † (basis of record)
Mastus complanatus (Reuss, 1849) † accepted as Palaeomastus complanatus (Reuss, 1849) † (new combination reference)
Megalotachea maguntina (Deshayes, 1832) † accepted as Palaeotachea maguntina (Deshayes, 1832) † (additional source)
Mesodontopsis chaixii (Michaud, 1855) † (basis of record)
Mesodontopsis ludovici (Noulet, 1854) † (additional source)
Mesotachea Pfeffer, 1930 † accepted as Palaeotachea Jooss, 1912 † (source of synonymy)
Metachloraea Pfeffer, 1930 † accepted as Parachloraea F. Sandberger, 1873 † (source of synonymy)
Minacilla H. Nordsieck, 2014 † (original description)
Minacilla minax (O. Boettger, 1889) † (basis of record)
Miodiscula H. Nordsieck, 2014 (original description)
Miodiscula disciformis (Wenz, 1919) † (basis of record)
Miodiscula miocaenica (Gottschick & Wenz, 1927) † (basis of record)
Monachoides sermenazensis (Locard, 1883) † accepted as Leucochroopsis valentinensis f. sermenazensis (Locard, 1883) † accepted as Leucochroopsis valentinensis (Fontannes, 1880) † (additional source)
Negulopsis H. Nordsieck, 2014 † (original description)
Negulopsis anodon (Deshayes, 1863) † (basis of record)
Negulopsis novigentiensis (F. Sandberger, 1871) † (basis of record)
Negulopsis suturalis (F. Sandberger, 1858) † accepted as Negulopsis lineolata (A. Braun, 1851) † (basis of record)
Negulus buxovillanus (Andreae, 1884) † accepted as Negulopsis novigentiensis (F. Sandberger, 1871) † (source of synonymy)
Negulus gracilis Gottschick & Wenz, 1919 † accepted as Negulopsis gracilis (Gottschick & Wenz, 1919) † (new combination reference)
Negulus lineolatus var. sublineolata O. Boettger, 1889 † accepted as Negulopsis sublineolata (O. Boettger, 1889) † (new combination reference)
Negulus sublineolatus O. Boettger, 1889 † accepted as Negulopsis sublineolata (O. Boettger, 1889) † (new combination reference)
Nicolasia Oppenheim, 1895 † (basis of record)
Odontotachea Pfeffer, 1930 † accepted as Palaeotachea Jooss, 1912 † (source of synonymy)
Omphalosagda F. Sandberger, 1872 † (additional source)
Omphalosagda hochheimensis (O. Boettger, 1897) † (status source)
Omphalosagda sandbergeri Schlickum & Strauch, 1979 † accepted as Pachyretinella sandbergeri (Schlickum & Strauch, 1979) † (new combination reference)
Opeas orci (Oppenheim, 1895) † (additional source)

Germany for Frechenia rhenana H. Nordsieck, 2014 † 
Germany for Urticicola schlickumi H. Nordsieck, 2014 † 

 Classification

 for Achatina buccinula Grateloup, 1828 †

The species was classified in the ferussaciid genus Hohenwartiana by Wenz (1923), but the systematic position is ... [details]

 Classification

 for Conobulimus Wenz, 1940 †

Classification in the Vidaliellidae tentative. [details]

 Classification

 for Dextrospira minutula Hrubesch, 1965 †

Systematic position uncertain. [details]

 Classification

 for Gastrobulimus Wenz, 1940 †

Classification in the Vidaliellidae tentative. [details]

 Classification

 for Juvavina Wenz, 1940 †

Classification in the Vidaliellidae tentative. [details]

 Classification

 for Leptaxis aziospudasta (Filhol, 1877) †

According to Nordsieck (2014), all species assigned to Leptaxis by Wenz (1923) belong in Pseudoleptaxis. [details]

 Classification

 for Leptaxis bulbulus (F. Sandberger, 1873) †

According to Nordsieck (2014), all species assigned to Leptaxis by Wenz (1923) belong in Pseudoleptaxis. [details]

 Classification

 for Leptaxis fabrei (F. Sandberger, 1873) †

According to Nordsieck (2014), all species assigned to Leptaxis by Wenz (1923) belong in Pseudoleptaxis. [details]

 Classification

 for Leptaxis raulini (Noulet, 1854) †

According to Nordsieck (2014), all species assigned to Leptaxis by Wenz (1923) belong in Pseudoleptaxis. [details]

 Classification

 for Leucochroa cairensis (Mayer-Eymar, 1889) †

According to Nordsieck (2014: 166), some of the species assigned to Leucochroa by Wenz (1923) belong to ... [details]

 Classification

 for Leucochroa milneedwardsi Filhol, 1877 †

According to Nordsieck (2014: 166), some of the species assigned to Leucochroa by Wenz (1923) belong to ... [details]

 Classification

 for Leucochroa semperiana (Crosse, 1861) †

According to Nordsieck (2014: 166), some of the species assigned to Leucochroa by Wenz (1923) belong to ... [details]

 Classification

 for Leucochroa subsemperiana (P. Thomas, 1888) †

According to Nordsieck (2014: 166), some of the species assigned to Leucochroa by Wenz (1923) belong to ... [details]

 Classification

 for Leucochroa tissoti (Bayan, 1870) †

According to Nordsieck (2014: 166), some of the species assigned to Leucochroa by Wenz (1923) belong to ... [details]

 Classification

 for Leucochroa viratellinus Pallary, 1901 †

According to Nordsieck (2014: 166), some of the species assigned to Leucochroa by Wenz (1923) belong to ... [details]

 Classification

 for Negulopsis anodon (Deshayes, 1863) †

Tentatively affiliated with Negulopsis by Nordsieck (2014). [details]

 Classification

 for Negulopsis novigentiensis (F. Sandberger, 1871) †

Tentatively affiliated with Negulopsis by Nordsieck (2014). [details]

 Classification

 for Opeas orci (Oppenheim, 1895) †

Classification uncertain! [details]

 Classification

 for Orcula oviformis (Michaud, 1838) †

The affiliation with Orculidae is questionable. [details]

 Classification

 for Oxychilus voltzii (Deshayes, 1832) †

Systematic position doubtful according to Nordsieck (2014) [details]

 Classification

 for Paracanariella Pfeffer, 1930 †

Systematic position uncertain. [details]

 Classification

 for Pseudelix O. Boettger, 1889 †

Systematic position within Vertiginidae uncertain. [details]

 Classification

 for Pseudoleacina michaudi Schlickum, 1975 †

According to Nordsieck (2014), this species is a subadult Ferussaciidae. A genus assignment seems not possible. [details]

 Classification

 for Pseudoleacina moayedpouri Schlickum, 1973 †

According to Nordsieck (2014), this species is a subadult Ferussaciidae. A genus assignment seems not possible. [details]

 Fossil range

 for Bulimus provensalis Nicolas, 1891 †

Age originally indicated as "Danien" (early Paleocene), but likely the strata are of Maastrichtian (latest ... [details]

 Identification

 for Monachoides sermenazensis (Locard, 1883) †

According to Nordsieck (2014), this classification is based on a misidentification, for which he introduced a new ... [details]

 Status

 for Eucobresia antinivalis Schlickum & Strauch, 1979 †

According to Nordsieck (2014), this species corresponds to an extant Eucobresia species, but he did not specify a taxon. [details]

 Status

 for Phacozonites Wenz, 1932 †

Status uncertain. [details]

 Status

 for Vitrina suevica erecta Gottschick, 1919 †

According to Nordsieck (2014), this taxon corresponds to an extant Eucobresia species, but he did not specify a ... [details]

 Taxonomic remark

 for Palaeotachea turonensis (Deshayes, 1832) †

Helix turonensis is the type species of Megalotachea Pfeffer, 1930. After Nordsieck (2014), the genera Megalotachea ... [details]

 Type locality

 for Frechenia rhenana H. Nordsieck, 2014 †

Open-cast mine Frechen near Kerpen, North Rhine-Westphalia, Germany; Piacenzian (mammal zone MN 16), late Pliocene [details]

 Type locality

 for Urticicola schlickumi H. Nordsieck, 2014 †

Open-cast mine Frechen near Kerpen, North Rhine-Westphalia, Germany; Piacenzian (mammal zone MN 16), late Pliocene [details]

 Type species

 for Retinella (Riedeliella) Schlickum & Strauch, 1975 †

Schlickum & Strauch designated Helix jourdani Michaud, 1862 as type species. According to Rousseau & Puisségur ... [details]

 Validity

 for Eucobresia forcarti Schlickum & Geissert, 1980 †

Nordsieck (2014) stated that the species looks more like Vitrina intermedia Reuss in Reuss & Meyer, 1849, which is ... [details]

 Validity

 for Helix thomaeana A. Braun, 1851 †

Introduced as replacement name for Helix deplanata Thomä, 1845, "non Müller" (which does not exist as such). ... [details]

 Validity

 for Oxychilus thomaeanum (A. Braun, 1851) †

Introduced as replacement name for Helix deplanata Thomä, 1845, "non Müller" (which does not exist as such). ... [details]