Externí odkaz - taxony
| Bicarinatina Batrukova, 1969 † | |
| Bicarinatina bicarinata (Kutorga, 1837) † | |
| Elliptoglossidae Popov et Holmer, 1994 = Elliptoglossinae Popov & Holmer, 1994 † BIOLIB: Popov & Holmer, 1994 | |
| Lingulops Hall, 1872 † | |
| Lingulops whitfieldi Hall, 1872 † | |
| Lingulops barrandei Mergl, 1999 † | |
| Lingulops fragilis Mergl, 2001 † | |
| Paterulidae Cooper, 1956 † | |
| Paterula Barrande, 1879 † | |
| Paterula argus Mergl, 1999 † | |
| Paterula holynensis Mergl, 2001 † | |
| Dysoristidae Popov et Ushatinskaya, 1992 † BIOLIB: Popov & Ushatinskaya, 1992 | |
| Dysoristus Bell, 1944 † | |
| Dysoristus lochmanae Bell, 1944 † | |
| Dysoristus posterus Mergl, 2001 = Orbaspina postera (Mergl, 2001) † | |
| Discinidae Gray, 1840 | |
| Orbiculoideinae Schuchert et Le Vene, 1929 † BIOLIB: Schuchert & LeVene, 1929 | |
| Orbiculoidea d'Orbigny, 1847 † | |
| Orbiculoidea forbesii (Davidson, 1848) † | |
| Orbiculoidea patelliformis (Barrande, 1879) † | |
| Orbiculoidea snajdri Mergl, 2001 † | |
| Orbiculoidea bubovicensis Mergl, 2001 † | |
| Orbiculoidea bohemica (Barrande, 1879) † | |
| Orbiculoidea karlstejnensis Mergl, 1996 † | |
| Orbiculoidea magnifica Mergl, 2001 † | |
| Orbiculoidea tarda (Barrande, 1879) † | |
| Schizotreta Kutorga, 1848 † | |
| Schizotreta elliptica (Kutorga, 1846) † | |
| Schizotreta rarissima (Barrande, 1879) † | |
| Lochkothele Havlíček et Mergl, 1988 † BIOLIB: Havlíček & Mergl, 1988 | |
Lochkothele intermedia (Barrande, 1879) †  | |
| Ivanothelinae Mergl, 2001 † | |
| Ivanothele Mergl, 1996 † | |
| Chynithele Havlíček, 1996 † | |
| Ivanothele mordor Mergl, 1996 † | |
| Acrosaccus Willard, 1928 † | |
| Acrosaccus vexatus (Barrande, 1879) † | |
| Chynithele ventricona Havlíček, 1996 † | |
| Disciniscinae Schuchert et Le Vene, 1929 BIOLIB: Schuchert & LeVene, 1929 | |
| Kosoidea Havlíček et Mergl, 1988 † BIOLIB: Havlíček & Mergl, 1988 | |
| Kosoidea fissurella Havlíček et Mergl, 1988 † BIOLIB: Havlíček & Mergl, 1988 | |
| Kosoidea regalis Havlíček, 1999 † | |
| Sterbinella daphne Mergl, 2001 | |
| Sterbinella Mergl, 2001 | |
| Praeoehlertella Mergl, 2001 † | |
| Praeoehlertella umbrosa Mergl, 2001 † | |
| Praeoehlertella georgiana Mergl, 2001 † | |
| Trematidae Schuchert, 1893 † | |
| Opatrilkiella Mergl, 2001 † | |
| Opatrilkiella minuta Mergl, 2001 † | |
| Opatrilkiella polonica (Baliński et Holmer, 1999) † BIOLIB: (Baliński & Holmer, 1999) | |
| Acrotretoidea Schuchert, 1893 † | |
| Acrotretidae Schuchert, 1893 † | |
| Acrotretella siluriana Ireland, 1961 † | |
| Acrotretella spinosa Mergl, 2001 † | |
| Acrotretella triseptata Mergl, 2001 † | |
| Scaphelasmatidae Rowell, 1965 † | |
| Artiotreta Ireland, 1961 † | |
| Artiotreta parva Ireland, 1961 † | |
| Artiotreta krizi Mergl, 2001 † | |
| Biernatidae Holmer, 1989 † | |
| Opsiconidion Ludvigsen, 1974 † | |
| Opsiconidion arcticon Ludvigsen, 1974 † | |
| Opsiconidion aldridgei (Cocks, 1979) † | |
| Opsiconidion celloni (Cocks, 1979) † | |
| Opsiconidion minor Popov, 1981 † | |
| Opsiconidion podlasiensis Biernat, 1984 † | |
| Opsiconidion praecursor Popov et al., 1994 † | |
| Opsiconidion ephemerus (Mergl, 1982) † | |
| Opsiconidion simplex Mergl, 2001 † | |
| Opsiconidion decessus Mergl, 2001 † | |
| Havlicekion Mergl, 2001 † | |
| Havlicekion robustum (Brock et al., 1995) † | |
| Havlicekion splendidus Mergl, 2001 † | |
| Havlicekion ivanensis Mergl, 2001 † | |
| Havlicekion holynensis Mergl, 2001 † | |
| Siphonotretidae Kutorga, 1848 † | |
| Siphonotretinae Kutorga, 1848 † | |
| Schizamboninae Havlíček, 1982 † | |
| Acanthamboninae Cooper, 1956 † | |
| Paterinidae Schuchert, 1893 † | |
| Careniellus carens (Barrande, 1879) † | |
| Obolidae King, 1846 † | |
| Obolinae King, 1846 = Obolidae King, 1846 † | |
| Careniellus Mergl, 2001 † | |
| Careniellus nigriculus (Havlíček, 1999) † | |
| Kosagittella Mergl, 2001 † | |
| Kosagittella clara Mergl, 2001 † | |
| Kosagittella pinguis Mergl, 2001 † | |
| Kosagittella lingua (Barrande, 1879) † | |
| Kacakiella bouceki Mergl, 2001 † | |
| Glossellinae Cooper, 1956 † | |
| Prastavia distincta Mergl, 2001 † | |
| Barrandeoglossa Mergl, 2001 † | |
| Barrandeoglossa fissurata (Barrande, 1879) † | |
| Barrandeoglossa bohemica (Barrande, 1879) † | |
| Barrandeoglossa perneri Mergl, 2001 † | |
| Pseudolingulidae Holmer, 1991 † | |
| Pseudolingula Mickwitz, 1909 † | |
| Pseudolingula quadrata (Voneichwald, 1829) † |