Abdounodus Gheerbrant & Sudre, 2001 † (current name source)
Acrotretida † (additional source)
Acrotretida † (taxonomy source)
Acrotretidae Schuchert, 1893 † (taxonomy source)
Albadesmus Wilson & Anderson, 2004 † (current name source)
Anthracojulus Fritsch, 1899 † (current name source)
Anthracojulus Fritsch, 1899 † (extant flag source)
Arachnophyllum Dana, 1846 † (current name source)
Archicambala Cook, 1896 † (extant flag source)
Archicambala Cook, 1896 † (current name source)
Baissa Rasnitsyn, 1975 † (current name source)
Baissa Rasnitsyn, 1975 † (verified source for family)
Baissidae Rasnitsyn, 1975 † (additional source)
Biernatidae Holmer, 1989 † (additional source)
Biernatidae Holmer, 1989 † (taxonomy source)
Biernatidae Holmer, 1989 † (current name source)
Biernatidae Holmer, 1989 † (habitat flag source)
Cephalomyidae Ameghino, 1897 † (habitat flag source)
Cephalomyidae Ameghino, 1897 † (current name source)
Cephalomyopsis Vucetich, 1985 † (verified source for family)
Cephalomys Ameghino, 1897 † (verified source for family)
Ceratretidae Rowell, 1965 † (additional source)
Ceratretidae Rowell, 1965 † (taxonomy source)
Chilopus Matthew, 1895 † (extant flag source)
Clisiophyllum Dana, 1846 † (current name source)
Conulariida † (name verified source)
Conulariida † (current name source)
Conulariida † (extant flag source)
Conulariida † (taxonomy source)
Crania Hirst & Maulik, 1926 † accepted as Heterocrania Hirst & Maulik, 1926 † (source of synonymy)
Curticiidae Walcott & Schuchert, 1908 † (taxonomy source)
Curticiidae Walcott & Schuchert, 1908 † (additional source)
Cyclostomata accepted as Cyclostomatida (basis of record)
Dasyleptus Brongniart, 1885 † (current name source)
Dasyleptus Brongniart, 1885 † (verified source for family)
Dinomylostoma Eastman, 1906 † (verified source for family)
Diploglossidae Boucourt, 1873 (additional source)
Discovascoceras Collignon, 1957 † accepted as Pseudotissotia Péron, 1897 † (source of synonymy)
Discovascoceras Collignon, 1957, nom. nud. † accepted as Pseudotissotia Péron, 1897 † (source of synonymy)
Doswellia Weems, 1980 † (current name source)
Duyunaspis Zhang & Qian in Zhou et al., 1977 † (current name source)
Duyunolepididae Pan & Wang, 1982 † (extant flag source)
Duyunolepididae Pan & Wang, 1982 † (current name source)
Duyunolepididae Pan & Wang, 1982 † (basis of record)
Duyunolepididae Pan & Wang, 1982 † (taxonomy source)
Duyunolepididae Pan & Wang, 1982 † (name verified source)
Duyunolepis Pan & Wang, 1982 † (current name source)
Duyunolepis Pan & Wang, 1982 † (verified source for family)
Dzhulfanella K.B. Korde, 1965 † accepted as Permocalculus G.F. Elliott, 1955 † (verified source for family)
Eoconulidae Rowell, 1965 † (taxonomy source)
Eoconulidae Rowell, 1965 † (additional source)
Eolampetis Pongrácz, 1935 † accepted as Lampetis Dejean, 1833 (source of synonymy)
Ephippelasmatidae Rowell, 1965 † (additional source)
Ephippelasmatidae Rowell, 1965 † (taxonomy source)
Eupithecops Ameghino, 1897 † (verified source for family)
Eupithecops Ameghino, 1897 † (current name source)
Furoniceras Collignon, 1957, nom. nud. † accepted as Pseudotissotia Péron, 1897 † (source of synonymy)
Furoniceras Collignon, 1957 † accepted as Pseudotissotia Péron, 1897 † (source of synonymy)
Gymnocodium J. Pia, 1920 † (verified source for family)
Gymnocodium J. Pia, 1920 † (current name source)
Helioentactinia Nazarov, 1975 † (verified source for family)
Heterobaissa Li, Rasnitsyn & Ren in Li et al., 2018 † (habitat flag source)
Heterobaissa Li, Rasnitsyn & Ren in Li et al., 2018 † (basis of record)
Heterobaissa Li, Rasnitsyn & Ren in Li et al., 2018 † (current name source)
Heterobaissa Li, Rasnitsyn & Ren in Li et al., 2018 † (extant flag source)
Heterobaissa Li, Rasnitsyn & Ren in Li et al., 2018 † (name verified source)
Heterobaissa Li, Rasnitsyn & Ren in Li et al., 2018 † (verified source for family)
Heterocrania Hirst & Maulik, 1926 † (habitat flag source)
Heterocrania Hirst & Maulik, 1926 † (name verified source)
Heterocrania Hirst & Maulik, 1926 † (current name source)
Heterocrania Hirst & Maulik, 1926 † (extant flag source)
Heterocrania Hirst & Maulik, 1926 † (basis of record)
Holcodus Gibbes, 1850, nom. nud. † accepted as Platecarpus Cope, 1869 † (source of synonymy)
Holcodus Gibbes, 1850 † accepted as Platecarpus Cope, 1869 † (source of synonymy)
Holcodus Gibbes, 1850 † accepted as Platecarpus Cope, 1869 † (extant flag source)
Holcodus Gibbes, 1850 † accepted as Platecarpus Cope, 1869 † (additional source)
Holcodus Gibbes, 1850 † accepted as Platecarpus Cope, 1869 † (verified source for family)
Homalocrinidae Angelin, 1878 † (basis of record)
Homalocrinidae Angelin, 1878 † (extant flag source)
Homalocrinidae Angelin, 1878 † (habitat flag source)
Homalocrinidae Angelin, 1878 † (taxonomy source)
Homalocrinidae Angelin, 1878 † (current name source)
Humiryssus Lin, 1980 † (verified source for family)
Humiryssus Lin, 1980 † (current name source)
Hunanella Xiong & Wang, 1979 † (basis of record)
Hunanella Xiong & Wang, 1979 † (extant flag source)
Hunanella Xiong & Wang, 1979 † (verified source for family)
Janacekia Růžička & Řehoř in Hajkr, Lukasova, Růžička & Řehoř, 1975 (verified source for family)
Janacekia Růžička & Řehoř in Hajkr, Lukasova, Růžička & Řehoř, 1975 (extant flag source)
Janacekia Růžička & Řehoř in Hajkr, Lukasova, Růžička & Řehoř, 1975 (current name source)
Janacekia Růžička & Řehoř in Hajkr, Lukasova, Růžička & Řehoř, 1975 (habitat flag source)
Karadagella Babanova, 1965 † (verified source for family)
Kimmeridgebrachypteraeschnidium Fleck & Nel, 2003 † (current name source)
Lambdaconus Ameghino, 1897 † (verified source for family)
Lambdaconus Ameghino, 1897 † (current name source)
Lamelloceras Erben in Erben et al., 1960, nom. nud. † accepted as Gyroceratites Meyer, 1831 † (verified source for family)
Lamelloceras Erben in Erben et al., 1960, nom. nud. † accepted as Gyroceratites Meyer, 1831 † (source of synonymy)
Lamelloceras Erben, 1960 † accepted as Gyroceratites Meyer, 1831 † (source of synonymy)
Lamelloceras Erben, 1960 † accepted as Gyroceratites Meyer, 1831 † (verified source for family)
Lichenaria Winchell & Schuchert, 1893 † (verified source for family)

 Descriptive info

 for Megalocera Hope, 1842 †

Type material is from a Holocene terrestrial amber in Tanzania. [details]

 Taxonomic remark

 for Crania Hirst & Maulik, 1926 †

Preoccupied by Crania Retzius, 1781 (fossil Brachiopoda); replacement name is Heterocrania Hirst & Maulik, 1926. [details]

 Taxonomic remark

 for Euestheria Depéret & Mazeran, 1912 †

As Isaura (Euestheria, = "true Estheria"); elevated to genus by Raymond, 1946. According to Nomenclator Zoologicus, ... [details]

 Taxonomic remark

 for Flavamussium Oyama in Kuroda, 1951, nom. nud.

Name first published as a nomen nudum by Oyama, 1951 [25 February], Illustrated catalogue of Japanese shells, ... [details]

 Taxonomic remark

 for Heterocrania Hirst & Maulik, 1926 †

Nomen novum for Crania Hirst & Maulik, 1926, non Crania Retzius, 1781 (fossil Brachiopoda). [details]