Amaurotoma kizilkiensis B. K. Likharev, 1967 † (basis of record)
Ananias Knight, 1945 † accepted as Glabrocingulum (Ananias) Knight, 1945 † represented as Glabrocingulum E. G. Thomas, 1940 † (basis of record)
Ananias bashkiriensis Mazaev, 2019 † (original description)
Ananias belaensis Mazaev, 2019 † (original description)
Anematina indiscreta Mazaev, 2019 † (original description)
Anomphalus glaucus Mazaev, 2019 † (original description)
Anomphalus planus B. K. Likharev, 1967 † (basis of record)
Apachella nodosa Batten, 1989 † (basis of record)
Apachella rugosa Mazaev, 2019 † (original description)
Arribazona seleukensis Mazaev, 2019 † (original description)
Bandelzyga Mazaev, 2019 † (original description)
Bandelzyga elegans Mazaev, 2019 † (original description)
Baylea burtasorum (Golovkinski, 1869) † (basis of record)
Baylea gurleyi (Meek, 1871) † (basis of record)
Baylea longispira Mazaev, 2019 † (original description)
Bellerophon (Bucania) sosiensis Gemmellaro, 1889 † accepted as Retispira lyelli (Gemmellaro, 1889) † (source of synonymy)
Bellerophon (Pharkidonotus) breyeri R. D. Hoare, Sturgeon & J. R. Anderson, 1997 † accepted as Pharkidonotus breyeri (R. D. Hoare, Sturgeon & J. R. Anderson, 1997) † (basis of record)
Bellerophon clausus Gemmellaro, 1889 † (basis of record)
Bellerophon daubenyi Gemmellaro, 1889 † (basis of record)
Bellerophon heterocanaliculus W. T. Pan & W. Yu, 1993 † accepted as Bellerophon isfarensis B. K. Likharev, 1956 † (source of synonymy)
Bellerophon isfarensis B. K. Likharev, 1956 † (basis of record)
Bellerophon karatshatyrensis B. K. Likharev & Nechaev, 1956 † (basis of record)
Bellerophon kingorum Yochelson, 1960 † (basis of record)
Bellerophon lamellosus Gemmellaro, 1889 † (basis of record)
Bellerophon plummeri Yochelson, 1960 † accepted as Waagenella plummeri (Yochelson, 1960) † (basis of record)
Bellerophon shakhtauensis Mazaev, 2019 † (original description)
Bolicharewia Mazaev, 2019 † (original description)
Bolicharewia edita Mazaev, 2019 † (original description)
Bolicharewia straparolliformis (Mazaev, 1997) † (basis of record)
Bucania nodulosa Mansuy, 1914 † accepted as Retispira lyelli (Gemmellaro, 1889) † (source of synonymy)
Callispira taosiformis Mazaev, 2019 † (original description)
Cristalloella Bandel, 1995 † (additional source)
Cristalloella (Wonwalica) M. Schröder, 1995 † represented as Cristalloella Bandel, 1995 † (basis of record)
Cristalloella (Wonwalica) permica Mazaev, 2019 † represented as Cristalloella permica Mazaev, 2019 † (original description)
Cyclozyga fusuiensis Y. T. Pan & W. Yu, 1993 † accepted as Platyzona eulkaiensis (Cowper Reed, 1927) † (source of synonymy)
Dictyotomaria Knight, 1945 † (taxonomy source)
Dictyotomaria balabanovi Mazaev, 2019 † (original description)
Discotomaria Batten, 1956 † (basis of record)
Discotomaria basisulcata Batten, 1956 † (basis of record)
Eirlysia Batten, 1956 † (basis of record)
Eirlysia lata Mazaev, 2015 † (additional source)
Eirlysia nodata Mazaev, 2015 † (additional source)
Eirlysia reticulata Batten, 1958 † (additional source)
Eirlysia reticulatiformis Mazaev, 2019 † (original description)
Euconospira pulchra Batten, 1958 † accepted as Shwedagonia pulchra (Batten, 1958) † (status source)
Euconospira skuini Mazaev, 2019 † (original description)
Euphemites Warthin, 1930 † (basis of record)
Euphemites batteni Yochelson, 1960 † (basis of record)
Euphemites exquisitus Yochelson, 1960 † (basis of record)
Euphemites imperator Yochelson, 1960 † (basis of record)
Euphemites kingi Yochelson, 1960 † (basis of record)
Euphemites luxuriosus Yochelson, 1960 † (basis of record)
Girtyspira Knight, 1936 † (additional source)
Girtyspira oblonga Mazaev, 2019 † (original description)
Globodoma magna Mazaev, 2019 † accepted as Nemaspira magna (Mazaev, 2019) † (original description)
Goniasma Tomlin, 1930 † (basis of record)
Goniasma gerassimovi Mazaev, 2019 † (original description)
Knightites (Retispira) girtyi Yochelson, 1960 † accepted as Retispira lyelli (Gemmellaro, 1889) † (basis of record)
Levizygopleura Bandel, 2002 † (basis of record)
Levizygopleura composita Mazaev, 2019 † (original description)
Levizygopleura magna Mazaev, 2019 † (original description)
Meekospiridae Knight, 1956 † (basis of record)
Monimirus Mazaev, 2019 † (original description)
Monimirus bonus Mazaev, 2019 † (original description)
Naticopsis kaibabensis Chronic, 1952 † (basis of record)
Naticopsis khurensis W. H. Waagen, 1880 † (basis of record)
Naticopsis kokeni Yakovlev, 1899 † (basis of record)
Naticopsis mediterranea Gemmellaro, 1889 † (basis of record)
Naticopsis petricola Gemmellaro, 1889 † (basis of record)
Naticopsis piriformis Mansuy, 1912 † (basis of record)
Naticopsis praealta Wanner, 1922 † (basis of record)
Naticopsis spallanzanii Gemmellaro, 1889 † (basis of record)
Naticopsis variata (J. Phillips, 1836) † (basis of record)
Novlepatella Starobogatov & Mazaev, 1999 † (basis of record)
Novlepatella stefaninii (Greco, 1937) † (basis of record)
Novlepatella uralensis Mazaev, 2019 † (original description)
Omphalotrochus Meek, 1864 † (basis of record)
Omphalotrochus barchatovae B. K. Likharev, 1974 † (basis of record)
Omphalotrochus canaliculatus canaliculatus (Trautschold, 1879) † accepted as Omphalotrochus canaliculatus (Trautschold, 1879) † (status source)
Omphalotrochus canaliculatus uerjagensis B. K. Likharev, 1974 † accepted as Omphalotrochus uerjagensis B. K. Likharev, 1974 † (status source)
Omphalotrochus canaliculatus uralicus B. K. Likharev, 1974 † accepted as Omphalotrochus uralicus B. K. Likharev, 1974 † (status source)
Omphalotrochus kalitvaensis B. K. Likharev, 1940 † (basis of record)
Omphalotrochus sulensis B. K. Likharev, 1974 † (basis of record)
Omphalotrochus timanicus B. K. Likharev, 1974 † (basis of record)
Omphalotrochus uerjagensis B. K. Likharev, 1974 † (basis of record)
Omphalotrochus uralicus B. K. Likharev, 1974 † (status source)
Orecopia Knight, 1945 † (basis of record)
Orecopia inopinata Mazaev, 2019 † (original description)
Orthonema conspicuum Mazaev, 2019 † (original description)
Orthonema frequens B. K. Likharev, 1968 † (additional source)
Orthonema inornatum Knight, 1934 † (basis of record)
Orthonema marvinwelleri Knight, 1934 † (basis of record)
Orthonema nonnullum Mazaev, 2019 † (original description)
Orthonema perspicuum Mazaev, 2019 † (original description)
Orthonema repandum Mazaev, 2019 † (original description)
Orthonema telescopiforme Erwin, 1988 † (basis of record)
Orthonychia J. Hall, 1843 † (basis of record)
Orthonychia korotkovae Mazaev, 2019 † (original description)
Palaeostylus confragosus Mazaev, 2019 † (original description)
Palaeostylus nervosus Mazaev, 2019 † (original description)

 Distribution

 for Bellerophon isfarensis B. K. Likharev, 1956 †

Upper Pennsylvanian of Central Asia, Asselian–Sakmarian boundary beds of southern Cisuralia, Leonard and Word ... [details]

 Distribution

 for Euomphalus cornudanus (Shumard, 1859) †

Asselian–Sakmarian boundary beds of southern Cisuralia. Volga–Ural Anteclise, Upper Kazanian; Wolfcampian, and ... [details]

 Distribution

 for Retispira lyelli (Gemmellaro, 1889) †

Asselian–Sakmarian boundary beds of southern Cisuralia. Middle Permian of Malaysia, Wordian of Sicily and ... [details]

 Distribution

 for Retispira modesta (Girty, 1909) †

Asselian–Sakmarian boundary beds of southern Cisuralia, Leonardian and Wordian of the southwestern United States [details]

 Etymology

 for Callispira taosiformis Mazaev, 2019 †

For similarity of the shell shape to the genus Taosia Girty, 1939 [details]

 Etymology

 for Platyzona shikhanensis Mazaev, 2019 †

From Shikhan, a Bashkir name for the Permian reef buildups near Sterlitamak [details]

 Fossil range

 for Amaurotoma kizilkiensis B. K. Likharev, 1967 †

Upper Carboniferous - Lower Permian [details]

 Fossil range

 for Eirlysia lata Mazaev, 2015 †

Lower-Middle Permian [details]

 Fossil range

 for Eirlysia nodata Mazaev, 2015 †

Lower-Middle Permian [details]

 Fossil range

 for Omphalotrochus uerjagensis B. K. Likharev, 1974 †

Late Permian [details]

 Fossil range

 for Stegocoelia quinquecostata (T.-H. Yin, 1932) †

Upper Carboniferous - Lower Permian [details]

 Taxonomic remark

 for Baylea de Koninck, 1883 †

Mazaev (2019: 1292) places this genus to the family Lophospiridae [details]

 Taxonomic remark

 for Bellerophon (Bellerophon) hilli Yochelson, 1960 †

Taxonomic status is uncertain; possibly it is conspecific with another species of Bellerophon (see Mazaev, 2019: 1253)  [details]

 Taxonomic remark

 for Bellerophon hilli Yochelson, 1960 †

Taxonomic status is uncertain; possibly it is conspecific with another species of Bellerophon (see Mazaev, 2019: 1253)  [details]

 Taxonomic remark

 for Retispira makatikhae (Yakovlev, 1899) †

Batten (1972) synonymized this species with Retispira lyelli (Gemmellaro, 1889), however, for more accurate ... [details]

 Taxonomic remark

 for Retispira orientalis (B. K. Likharev & Nechaev, 1956) †

Batten (1972) synonymized this species with Retispira lyelli (Gemmellaro, 1889), however, for more accurate ... [details]