CHECKLIST OF TRIASSIC BRYOZOA
ARCTICOPORA CHRISTIEI Fritz, 1962
Species typica Arcticopora Fritz, 1962
Triassic, Scythian (Canada, Ellesmere Island: Blind Fiord Formation)
300 feet below Arctoceras and Pseudomonotis boreas
BATOSTOMELLA JAKUTICA Lazutkina, 1963
Etiam Pseudobatostomella fide Morozova (1969)
Triassic, Scythian (USSR, Yakut)
BERENICEA cf. DILUVIANA Lamouroux, 1821 in Bizzarini & Braga (1982)
Triassic, Rhaetian
BERENICEA HYBENSIS Prantl, 1938
Etiam Reptomultisparsa fide Taylor and Michalik (1991)
Etiam ‘Berenicea ' fide Bizzarini and Braga (1985)
Triassic, Rhaetian (Kossener Schichten, Austria; Czech Republic)
BRAIESOPORA VOIGTI Bizzarini & Braga, 1985
Species typica Braiesopora Bizzarini & Braga, 1985
Triassic, Carnian (Italy: San Cassiano Formation)
BURIA IMPROVISA Morozova & Zharnikova, 1984
Species typica Buria Morozova & Zharnikova, 1984
Triassic, Norian (Primor'ye Region, Russia)
Calamopora ? gnemidium Klipstein, 1843
Non Bryozoa fide Schafer & Fois (1987); Nunc Porifera fide Engeser and Taylor (1989)
Etiam Cassianochaetetes fide Engeser and Taylor (1989)
Etiam Ceriopora fide Wohrmann (1889)
Etiam Ceriopora fide Bizzarini & Braga (1978)
Etiam Polytrema fide d'Orbigny (1850)
Triassic, early Carnian (Italy: Cassian Beds)
Cassianopora giulinii Bizzarini & Braga, 1978
Non Bryozoa fide Schafer & Fois (1987); Nunc Porifera fide Engeser and Taylor (1989)
Species typica Cassianopora Bizzarini & Braga, 1978
Etiam Tubuloparietes fide Engeser and Taylor (1989)
Triassic, early Carnian (Italy: Cassian Beds)
Ceriopora alpina Klipstein, 1845
Non Bryozoa; Nunc Porifera fide Engeser and Taylor (1989)
Nunc Leiospongia fide Engeser and Taylor (1989)
Triassic, early Carnian (Italy: Cassian Formation)
CERIOPORA BACONICA Vinassa de Regny, 1901
Etiam Ceriopora (?) fide Bizzarini & Braga (1982)
Triassic, Carnian (Hungary)
Ceriopora bittneri (Vinassa de Regny, 1901)
Vide Monticulipora (Heterotrypa) bittneri
CERIOPORA BOECKIANA Vinassa de Regny, 1901
Etiam Heteropora fide Bizzarini & Braga (1982)
Triassic, Carnian (Hungary)
CERIOPORA (RAMIA) ELEGANTULA De Gregorio, 1930
Nomen dubium fide Bizzarini & Braga (1982)
Triassic, Carnian (Italy)
CERIOPORA FLABELLUM Vinassa de Regny, 1901
Etiam Heteropora (?) fide Bizzarini & Braga (1982)
Triassic, Carnian (Hungary)
Ceriopora gnemidium (Klipstein, 1843)
Vide Calamopora ? gnemidium
"Ceriopora" montisspeciei (Bizzarini & Braga, 1978
Non Bryozoa fide Schafer & Fois (1987); ?sclerosponge
Triassic, Carnian (Italy: Cassian Beds)
CERIOPORA PANNONICA Papp, 1900
Triassic, Carnian (Hungary)
Ceriopora spongicola (Vinassa de Regny, 1915)
Vide Monotrypella spongicola
CHAETETES RECUBARIENSIS von Schauroth, 1855
Nunc Pseudobatostomella fide Bizzarini & Braga (1982), Schafer & Fois (1987)
Etiam Monotrypa fide
Triassic, late Anisian (western Europe)
Corynotrypoides ladina Bizzarini & Braga, 1994
Species typica Corynotrypoides Bizzarini & Braga, 1994
Triassic, Carnian (Italy: St. Cassiano Formation)
Not clearly bryozoan although placed here and compared to hederellids, which may be corals, and corynotrypids.
CYSTITRYPA CASSIANA Schafer & Fois, 1987
Species typica Cystitrypa Schafer & Fois, 1987
Triassic, early Carnian (Italy: San Cassiano Formation)
Dianulites pappi Vinassa de Regny, 1911
Vide Monotrypa (Dianulties) pappi
Dianulites patens Vinassa de Regny, 1911
Vide Monotrypa (Dianulites) patera
Diatrypella baconica Vinassa de Regny, 1911
Vide Monotrypa (Diatrypella) baconica
Diatrypella capulus Vinassa de Regny, 1911
Vide Monotrypa (Diatrypella) capulus
Diatrypella obumbrata Vinassa de Regny, 1911
Vide Monotrypa (Diatrypella) obumbrata
Diplotrypa bittneri (Vinassa de Regny, 1901)
Vide Monticulipora (Heterotrypa) bittneri
Diplotrypa hornigi (Vinassa de Regny, 1901)
Vide Monticulipora (Heterotrypa) hornigi
DYSCRITELLA AGISCHEVI Nekhoroshev, 1949
Triassic, Norian (Anadyr River Basin, Russia)
DYSCRITELLA? ANISICA Zagorsek, 1993
Triassic, Anisian (Slovakia)
Dyscritella dagysi (Morozova, 1969)
Vide Paralioclema dagysi
DYSCRITELLA EXTREMA Morozova in Morozova & Zharnikova, 1984Triassic, upper Norian (Kolyma Massif, Russia)
DYSCRITELLA HIDAKAENSIS Sakagami, 1979
Triassic, late Ladinian-early Carnian (Japan: Hidaka Group) Carnian in Hu (1984, table)
DYSCRITELLA NEVADENSIS Schafer & Fois, 1987
Permo-Triassic, (USA, Nevada); Paleozoic associated with endothyrid foraminifers
DYSCRITELLA PARASPINOSULA Schafer & Fois, 1987
Permo-Triassic, (USA, Nevada); doubtfully Triassic, associated fossils could be Permian
Dyscritella pauca (Yang & Hsia, 1975)
Vide Paralioclema pauca
DYSCRITELLA RHOMBOPORATA Schafer & Fois, 1987
Triassic, Carnian (India: Zozar Formation)
Dyscritella sugigamai Sakagami, 1979
Ab errore pro Leioclema sugiyamai in Bizzarini & Braga (1982)
DYSCRITELLA TUMULENSIS Morozova in Morozova & Zharnikova, 1984
Triassic, Carnian (Olenek River, Russian Arctic) Zone of Protrachyceras scimkanense
DYSCRITELLA ZARDINII Schafer & Fois, 1987
Triassic, early Carnian (Italy: San Cassiano Formation)
DYSCRITELLOPSIS ISOSEPTATUS Schafer & Grant‑Mackie, 1994
Species typica Dyscritellopsis Schafer & Grant Mackie, 1994
Triassic, Norian (New Zealand: Oretian, Torlesse Supergroup)
EOHETEROPORA KATZI Morozova in Morozova & Zharnikova, 1984
Species typica Eoheteropora Morozova in Morozova & Zharnikova, 1984
Triassic, upper Norian (Kolyma Massif, Russia)
FASCICULARIA TRIASINA Vinassa de Regny, 1901
Triassic, Carnian (Hungary)
FENESTELLA CUCURBINA De Gregorio, 1930
Nomen dubium fide Bizzarini & Braga (1982)
Triassic, Carnian (Italy)
FENESTELLA MIRULA De Gregorio, 1930
Nomen dubium fide Bizzarini & Braga (1982)
Triassic, Carnian (Italy)
FENESTELLA (NEBRODENSIA) PANORMENSIS De Gregorio, 1930
Nomen dubium fide Bizzarini & Braga (1982)
Etiam Fenestella fide Bizzarini & Braga (1982)
Triassic, Carnian (Italy)
FENESTELLA sp. Trumpy, 1960
Triassic, Scythian
Nunc Permian fide Teichert and Kummel (1976)
Heteropora flabellum (Vinassa de Regny, 1911)
Vide Ceriopora flabellum
Heterotrypa hornigi (Vinassa de Regny, 1901)
Vide Monticulipora (Heterotrypa) hornigi
HETEROPORA PATERA Vinassa de Regny, 1901
Triassic, Carnian (Hungary)
Heteropora boeckiana (Vinassa de Regny, 1901)
Vide Ceriopora boeckiana
Heterotrypa bittneri Vinassa de Regny, 1901
Vide Monticulipora (Heterotrypa) bittneri
Heterotrypa hornigi Vinassa de Regny, 1901
Vide Monticulipora (Heterotrypa) hornigi
Leioclema abnorme (Morozova, 1969)
Vide Paralioclema abnorme
Leioclema amurense (Morozova, 1969)
Vide Paralioclema amurense
Leioclema dagysi (Morozova, 1969)
Vide Paralioclema dagysi
Leioclema formosum (Morozova, 1969)
Vide Paralioclema formosum
Leioclema leioclemaformis (Yang, & Hsia, 1975)
Vide Paralioclema leioclemaformis
Leioclema multum (Yang & Hsia, 1975)
Vide Paralioclema multum
Leioclema paucum (Yang & Hsia, 1975)
Vide Paralioclema paucum
Leioclema pilula (Yang & Hsia, 1975)
Vide Paralioclema pilula
LEIOCLEMA SUGIYAMAI Sakagami, 1979
Etiam Zozariella fide Zagorsek (1993)
Triassic, late Ladinian‑early Carnian (Japan: Hidaka Group)
Carnian in Hu (1984, table)
Leioclema tulungense (Yang & Hsia, 1975)
Vide Paralioclema tulungense
MONOTRYPA (DIATRYPELLA) BACONICA Vinassa de Regny, 1901
Etiam Monotrypella fide Vinassa de Regny (1920)
Triassic, Carnian (Hungary)
MONOTRYPA BOECKHIANA Papp, 1900
Triassic, Carnian (Hungary, Veszprem)
MONOTRYPA (DIATRYPELLA) CAPULUS Vinassa de Regny, 1901
Etiam Monotrypella fide Vinassa de Regny (1920)
Triassic, Carnian (Hungary)
MONOTRYPA HIRSUTAMURALIS Papp, 1900
Etiam Monotrypella fide Vinassa de Regny (1920)
Triassic, Carnian (Hungary, Veszprem)
MONOTRYPA (MONOTRYPELLA) OBUMBRATA Vinassa de Regny, 1911 [1908]
Etiam Monotrypa fide Bizzarini & Braga (1982)
Etiam Monotrypella fide Vinassa de Regny (1920)
Triassic, Carnian (Hungary)
MONOTRYPA (DIANULITES) PAPPI Vinassa de Regny, 1901
Etiam Monotrypa fide Vinassa de Regny (1920) & Bizzarini & Braga (1982)
Triassic, Carnian (Hungary)
MONOTRYPA (DIANULITES) PATERA Vinassa de Regny, 1901
Etiam Heteropora fide Bizzarini & Braga (1982)
Triassic, Carnian (Hungary)
MONOTRYPA PETHOI Papp, 1900
Etiam Monotrypa (?) fide Bizzarini & Braga (1982)
Triassic, Carnian (Hungary)
Monotrypa recubariensis (von Schauroth, 1855)
Vide Chaetetes recubariensis
MONOTRYPELLA MAORICA Wilckens, 1927
Nomen dubium, based on casts
?Eoheteropora fide Schafer & Grant‑Mackie (1994)
Triassic, ?Ladinian‑Norian (New Zealand: ?Kaihikuan, Oretian, Murihiku terrane) fide Schafer & Grant‑Mackie (1994) Spiriferina and coral beds; early Carnian fide Marwick. (1953)
Ladinian‑Carnian in Hu (1984, table)
Monotrypella obumbrata Vinassa de Regny, 1911
Vide Monotrypa (Monotrypella) obumbrata
MONOTRYPELLA SPONGICOLA Vinassa de Regny, 1915
Species typica Petalotrypella Vinassa de Regny, 1920
Nomen dubium fide Bassler (1953)
Etiam Petalotrypella fide Vinassa de Regny (1920)
Etiam Ceriopora fide Bizzarini & Braga (1982)
Triassic, Norian‑Rhaetian (Indonesia, Timor)
cited as Carnian in Bizzarini & Braga (1982), Rhaetian in Hu (1984, table)
MONOTRYPELLA TIMORICA Vinassa de Regny, 1915
Non Bryozoa fide Schafer & Fois (1987); ?sclerosponge
Triassic, Norian‑Rhaetian (Indonesia, Timor), Norian in Hu (1984, table)
MONTICULIPORA (HETEROTRYPA) BITTNERI Vinassa de Regny, 1901
Etiam Ceriopora fide Bizzarini & Braga (1982)
Etiam Diplotrypa fide Vinassa de Regny (1920)
Triassic, Carnian (Hungary)
MONTICULIPORA (HETEROTRYPA) HORNIGI Vinassa de Regny, 1901
Etiam Heteropora fide Bizzarini & Braga (1982)
Etiam Diplotrypa fide Vinassa de Regny (1920)
Triassic, Carnian (Hungary)
Nebrodensia panormensis De Gregorio, 1930
Vide Fenestella (Nebrodensia) panormensis
PARALIOCLEMA ABNORME Morozova, 1969
Etiam Leioclema fide Bizzarini & Braga (1982)
Triassic, Carnian (Northwest Caucausus, Russia) cited as Norian in Hu (1984, table)
PARALIOCLEMA AMURENSE Morozova, 1969
Etiam Leioclema fide Bizzarini & Braga (1982)
Triassic, Anisian (Primorsk Border, Russia)
PARALIOCLEMA DAGYSI Morozova, 1969
Nunc Dyscritella fide Schafer & Fois (1987)
Etiam Leioclema fide Bizzarini & Braga (1982)
Triassic, Carnian (western Europe)
PARALIOCLEMA FORMOSUM Morozova, 1969
Etiam Leioclema fide Bizzarini & Braga (1982)
Triassic, Norian (Northwest Caucausus, Russia)
PARALIOCLEMA LEIOCLEMAFORMIS Yang & Hsia [Xia], 1975
Etiam Leioclema fide Bizzarini & Braga (1982)
Triassic, upper [?Carnian] (China), Carnian in Hu (1984, table)
PARALIOCLEMA MARIAHOLMENSIS Nakrem & Mork, 1990
Triassic, early [Scythian] (Spitzbergen: Dienerian‑Smithian)
PARALIOCLEMA MULTUS Yang & Hsia [Xia], 1975
Etiam Leioclema fide Bizzarini & Braga (1982)
Triassic, upper [?Carnian] (China), Carnian in Hu (1984, table)
PARALIOCLEMA PAUCUS Yang & Hsia [Xia], 1975
Etiam Dyscritella fide Schafer & Fois (1987)
Etiam Leioclema fide Bizzarini & Braga (1982)
Triassic, upper [?Carnian] (China), Carnian in Hu (1984, table)
PARALIOCLEMA PILULA Yang & Hsia [Xia], 1975
Etiam Leioclema fide Bizzarini & Braga (1982)
Triassic, upper [?Carnian] (China), Carnian in Hu (1984, table)
PARALIOCLEMA TULUNGENSE Yang & Hsia [Xia], 1975
Etiam Leioclema fide Bizzarini & Braga (1982)
Triassic, upper [?Carnian] (China), Carnian in Hu (1984, table)
PARALIOCLEMA WINSNESI Nakren & Mork, 1990
Triassic, early [Scythian] (Spitzbergen: Dienerian‑Smithian)
Petalotrypella spongicola (Vinassa de Regny, 1901)
Vide Monotrypella spongicola
PHRAGMOTRYPA ORDINATA Schafer & Fois, 1987
Species typica Phragmotrypa Schafer & Fois, 1987
Triassic, Anisian (Nevada: Dixie Valley and Favrets Formations)
POLYPORA (?) DARASHAMENSIS Nikiforova,
Triassic, Scythian (USSR)
Nunc Permian, Darashamian (or late Dzulfian) (Russia) fide Rostovtsev & Azaryan (1973)
POLYPORA sp. Trumpy, 1960
Triassic, Carnian
Nunc Permian fide Teichert and Kummel (1976)
PSEUDOBATOSTOMELLA AESTIVA Schafer & Grant‑Mackie, 1994
Triassic, Ladinian (New Zealand: Kaihikuan, Torlesse terrane)
PSEUDOBATOSTOMELLA DEBILIS Morozova, 1969
Triassic, Ladinian‑Carnian (Primorsk Border, Russia)
Pseudobastomella jakutica (Lazutkina, 1963)
Vide Batostomella jakutica
PSEUDOBATOSTOMELLA KOBAYASHII Sakagami, 1979
Triassic, late Ladinian‑early Carnian (Japan: Hidaka Group), Carnian in Hu (1984, table)
PSEUDOBATOSTOMELLA LOBATULA Schafer & Grant‑Mackie, 1994
Triassic, Norian (New Zealand: Oretian, Torlesse terrane)
PSEUDOBATOSTOMELLA MORBOSA Morozova, 1969
Triassic, Carnian‑Norian (Southwest Pamir, former USSR)
Pseudobatostomella recubariensis (von Schauroth, 1855)
Vide Chaetetes recubariensis
PSEUDOBATOSTOMELLA SPARSA Morozova, 1969
Triassic, Anisian (Northwest Caucausus, Russia; Zone of Decurtella decurtatus)
PSEUDOBATOSTOMELLA XIZANGENSIS Hu, 1984
Triassic, Ladinian (China)
Ramia elegantula De Gregorio, 1930
Vide Ceriopora (Ramia) elegantula
Reptomultisparsa hybensis (Prantl, 1938)
Vide Berenicea bybensis
REPTONODITRYPA CAUTICA Schafer & Fois, 1987
Species typica Reptonoditrypa Schafer & Fois, 1987
Triassic, Anisian (Italy: Dont Formation)
REPTONODOCAVA INCRASSATA Morozova & Zharnikova, 1984
Triassic, Norian (Tetyukhinskaya Formation, Primor'ye Region, Russia)
SEELANDIA ANNOSCIAI Bizzarini & Braga, 1978
Non Bryozoa fide Schafer & Fois (1978); Nunc Porifera fide Engeser and Taylor (1989)
Nunc Atrochaetetes fide Engeser and Taylor (1989)
Species typica Seelandia Bizzarini & Braga, 1978
Triassic, early Carnian (Italy: Cassian beds)
SEELANDIA LAGAAIJI Bizzarini & Braga, 1978
Non Bryozoa fide Schafer & Fois (1978); Nunc Porifera fide Engeser and Taylor (1989)
Nunc Atrochaetetes fide Engeser and Taylor (1989)
Triassic, early Carnian (Italy: Cassian beds)
STENODISCUS KAWHIAE Schafer & Grant‑Mackie, 1994
Triassic, Norian (New Zealand: Warepan, Murihiku terrane)
STENODISCUS ZEALANDICUS Schafer & Grant‑Mackie, 1994
Triassic, Norian (New Zealand: Otamitan, Murihiku terrane)
STENOPORA (?) KOCKI Vinassa de Regny, 1901
Triassic, Carnian (Hungary)
STENOPORA sp. Trumpy, 1960
Triassic, Scythian
Nunc Permian fide Teichert and Kummel (1976)
STOMATOPORA DUBIA Papp, 1900
Triassic, Carnian (Hungary)
STOMATOPORA sp. Prantl, 1938
?Nomen dubium, described but not figured
Triassic, Rhaetian (Kossener Schichten, Austria)
STYLOCLEMA MOROZOVAE Schafer & Grant‑Mackie, 1994
Species typica Styloclema Schafer & Grant‑Mackie, 1994
Triassic, Norian (New Zealand: Warepan)
TEBITOPORA DEPRESSA Hu, 1984
Triassic, Ladinian (China)
TEBITOPORA ORIENTALIS Hu, 1984
Species typica Tebitopora Hu, 1984
Triassic, Ladinian‑Carnian (China)
Norian (New Zealand: Otamitan, Torlesse terrane)
TUBULITRYPA MACULATA Flugel, 1961
Non Bryozoa fide Schafer & Fois (1978); ?sclerosponge
Triassic, Rhaetian (Austria: Zlambach Beds)
VYSOKELLA ACANTHOSTYLICA Zagorsek, 1993
Species typica Vysokella fide Zagorsek (1993)
Triassic, Anisian (Slovakia)
VYSOKELLA GLABRA Zagorsek, 1993
Triassic, Anisian (Slovakia)
ZLAMBACHELLA ALPINA Flugel, 1961
Non Bryozoa fide Schafer & Fois (1978); Engeser & Taylor (1989); ?sclerosponge
Triassic, Rhaetian (Austria: Zlambach Beds)
ZOZARIELLA STELLATA Schafer & Fois, 1987
Species typica Zozariella Schafer & Fois, 1987
Triassic, Carnian (India: Zozar Formation)
Zozariella sugiyamai Sakagami (1979)
Vide Leioclema sugiyamai
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NOTES
Bassler (1953, p. G28) cited Rusconi (1948) as a reference for Triassic bryozoans. None of the 1948 Rusconi papers I have examined contain any mention of Triassic bryozoans. One paper contains the description of a new Ordovician genus and species of bryozoan. I conclude this was an oversight by Bassler. A Jurassic faunal list by Rusconi (1948) also contains no citations to bryozoans.
Teichert and Kummel (1976) reviewed the sites of Trumpy (1960) and earlier workers who reported Permian fossils in lowest Triassic rocks of east Greenland. They concluded that all these reports represented materials reworked from underlying Permian beds. The Permian beds are probably earlier than Dzulfian or post‑Dzulfian Permian stages. Wignall and Twitchett (1997) believe some bryozoans are not reworked and that east Greenland was a refugium during the early Triassic.
Rostovtsev and Azaryan (1973) assigned the beds from which Nikiforova described Polypora darashamensis to their Darashamian stage of the latest Dzulfian although other authors apparently use either late Dzulfian or another local stage names for correlative late Permian beds, most of which have a depleted faunal diversity.
A number of taxa originally assigned to typically early Palaeozoic genera, Diplotrypa, Monotrypa, Monotrypella, and Monticulipora have not been re-evaluated in recent years. Consequently, it is impossible to determine if they are bryozoans or Mesozoic calcareous chaetetid sponges. Where wall structure is sufficiently well preserved some of these taxa can be unequivocally be assigned to bryozoans or sponges based on SEM studies. Where data is insufficient we have regarded the names as nomina dubia.
The number of Triassic names accepted as bryozoan is now approximately 60 and more than half have been reported from the Carnian. Other Triassic stages have 7 or fewer reported taxa. Most of the major Palaeozoic bryozoan orders have Triassic representatives although the fenestrate reports are shaky and need further review. There are no reports of Triassic ctenostomes and forms that Brood would place in the Paleotubuliporina apparently became extinct in the Permian. Modern cyclostomes appear in the late Triassic and the very modest late Triassic Carnian radiation of the Palaeozoic survivors did not survive the Triassic.
SUMMARY OF RECOGNIZED TRIASSIC GENERA AND FAMILIES
Number of species names included in Bryozoa: 66
Number of genera (26); 13 known only from Triassic (TR)
Arctixcopora TR
Berenicea
Braiesopora TR
Buria TR
Ceriopora
Cystitrypa TR
Dyscritella
Dyscritellopsis TR
Eoheteropora TR
Fascicularia
Heteropora
Leioclema
Monotrypa
Monotrypella
Nebrodensia
Paralioclema
Petalotrypella TR
Phragmotrypa TR
Pseudobatostomella
Ramia
Reptonoditrypa TR
Reptonodocava TR
Stomatopora
Styloclema TR
Tebitopora TR
Zozariella TR
Triassic bryozoan families
Cyclostomida
Cerioporina
Cerioporidae
Ceriopora Goldfuss, 1827
Heteroporidae
Buria Morozova & Zharnikova, 1984
Eoheteropora Morozova in Morozova & Zharnikova, 1984
Heteropora de Blainville, 1830
Ramia de Gregorio, 1930
Reptonodocava d'Orbigny, 1854
Tubuliporina
Diastoporidae fide Bizzarini & Braga (1985)
Berenicea Lamouroux, 1821
Reptomultisparsa d’Orbigny, 1853
Stomatopora-like forms (2) fide Bizzarini and Braga (1985)
Stomatopora Bronn, 1825
Oncousoeciidae fide Bizzarini and Braga (1985)
no taxa specifically assigned
Family uncertain
Braiesopora Bizzarini & Braga, 1985
Cryptostomida
Fenestellidae
Nebrodensia de Gregorio, 1930
Cystoporida
Fistuliporidae
?Cystitrypa Schafer & Fois, 1987
Hederellida
?Hederellidae fide Bizzarini and Braga (1985)
no taxa specifically assigned
Trepostomida
Araxoporidae Morozova, 1970
Styloclema Schafer & Grant Mackie, 1994
Dyscritellidae Dunaeva & Morozova, 1967
Arcticopora Fritz, 1961
Dyscritella Girty, 1911
Dycritellopsis Schafer & Grant Mackie, 1994
Pseudobatostomella Morozova, 1960
Heterotrypidae Ulrich, 1890
Paralioclema Morozova, 1961
Phragmotrypa Schafer & Fois, 1987
Reptonoditrypa Schafer & Fois, 1987
?Zozariella Schafer & Fois, 1987
Nikiforovellidae Goryunova, 1975
?Tebitopora Hu Zhao Xun, 1984
Stenoporidae Waagen & Wetzel, 1886
Stenodiscus Crockford, 1945
Zozariellidae Zagorsek, 1993
Vysokella Zagorsek, 1993
Zozariella Schafer & Fois, 1987
Version of 13 March 1998