Basic info Taxonomic history Classification Included Taxa
Morphology Ecology and taphonomy External Literature Search Age range and collections

Cyclostomata

Synonyms
Synonymy list
YearName and author
1898Cyclostomata Gadow p. 2
1911Cyclostomata Jaekel p. 38
1963Marsipobranchii Jordan p. 582
1968Cyclostomata Bardack and Zangerl
2021Cyclostomata Miyashita et al.

Is something missing? Join the Paleobiology Database and enter the data

RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
RankNameAuthor
phylumChordataHaeckel 1874
subphylumVertebrata
superclassCyclostomataRichards
superclassCyclostomataRichards

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

Supercl. Cyclostomata Richards
show all | hide all
Cl. †Anaspida Traquair
+
+
Fm. †Pharyngolepididae Kiær 1924
+
G. †Pharyngolepis Kiaer 1911
+
†Pharyngolepis heintzi Ritchie 1964
†Pharyngolepis oblongus Kiaer 1911
Fm. †Pterygolepididae Obruchev 1964
+
G. †Pterygolepis Kiaer 1911
+
†Pterygolepis nitida Kiaer 1911
Fm. †Ramsaasalepididae Blom et al. 2003
+
G. †Ramsaasalepis Blom and Marss 2003
Fm. †Septentrioniidae Blom et al. 2002
+
G. †Septentrionia Blom et al. 2001
+
†Septentrionia dissimilis Blom et al. 2001
†Septentrionia lancifera Blom et al. 2001
†Septentrionia mucronata Blom et al. 2001
†Septentrionia seducta Blom et al. 2001
Fm. †Tahulalepididae Blom et al. 2002
+
G. †Tahulalepis Blom et al. 2001
Invalid names: Rhyncholepididae Kiaer 1924 [empty]
Or. Birkeniida Berg 1937
+
G. †Cowielepis Blom 2008
+
†Cowielepis ritchiei Blom 2008
+
Fm. †Birkeniidae Traquair 1899
+
G. †Birkenia
+
†Birkenia elegans Traquair 1898
†Birkenia robusta Blom et al. 2001
G. †Ctenopleuron Mathew 1907
G. †Kerreralepis BLOM 2012
+
†Kerreralepis carinata BLOM 2012
G. †Rhyncholepis Kiaer 1911
+
†Rhyncholepis butriangula Blom et al. 2001
†Rhyncholepis parvula Kiaer 1911
+
Fm. †Endeiolepididae Stensiö 1939
+
G. †Endeiolepis Stensiö 1939
Or. †Conodontophorida Eichenberg 1930
+
G. †Angulodus
G. †Axiothea
G. †Cambropustula Müller and Hinz 1991
G. †Coelocerodontus Ethington 1959
+
†Coelocerodontus trigonius Ethington 1959
Cl. †Conodonta Pander 1856 [conodont]
+
G. †Acodina Stauffer
+
†Acodina cuspidata Stauffer 1940
†Acodina inoptinata Stauffer 1938
+
Invalid names: Acodina concava Stauffer 1940 [synonym], Acodina lirata Stauffer 1940 [synonym], Acodina ursa Stauffer 1940 [synonym]
G. †Aldridgeodus Calner et al. 2008
+
†Aldridgeodus minimus Calner et al. 2008
G. †Aldridgeognathus Miller et al. 2017
+
†Aldridgeognathus manniki Miller et al. 2017
G. †Ancidontus Chen and Gong 1986
G. †Ancyrogondolella Budurov 1972
+
G. †Apteracontiodus Bauer 2010
+
Or. †Belodellida Sweet 1988
+
Fm. †Ansellidae Fåhræus and Hunter 1985
+
G. †Ansella
G. †Hamarodus Viira 1975
Fm. †Belodellidae Khodalevich and Tschernich 1973
+
G. †Belodella Ethington 1959
G. †Dvorakia Klapper and Barrick 1983
G. †Stolodus Lindström 1955
G. †Walliserodus Serpagli 1967
G. †Besselodus Aldridge 1982
+
†Besselodus arcticus Aldridge 1982
†Besselodus borealis Nowlan et al. 1988
Fm. †Dapsilodontidae Sweet 1988
+
G. †Dapsilodus Cooper 1976
G. †Branmehla Haas 1959
G. †Chengyuania Kozur 1994
+
Invalid names: Pseudogondolella Kozur 1990 [replaced]
Fm. †Coleodontidae Branson and Mehl 1944
+
G. †Archaeognathus Cullison 1938
G. †Coleodus Branson and Mehl 1933
G. †Mixoconus Sweet 1955
G. †Neocoleodus Branson and Mehl 1933
G. †Stereoconus Branson and Mehl 1933
+
†Stereoconus bicostatus Moskalenko 1970
Invalid names: Archaeognathidae Miller 1969 [synonym]
G. †Costiconus Rasmussen 2001
+
†Costiconus costatus Dzik 1976
†Costiconus ethingtoni Fåhræus 1966
†Costiconus iniquus Viira 1974
G. †Dasytodus Chen and Gong 1986
+
†Dasytodus transmutatus Xu and Xiang 1983
G. †Diaphanodus Bagnoli 1987
+
†Diaphanodus compressus Chen and Gong 1986
Invalid names: Stenodontus Chen and Gong 1986 [replaced], Vanwamelodus Apollonov 1984 [replaced]
+
†Dischidognathus primus Ethington and Clark 1982
Fm. †Distacodidae Ulrich and Bassler 1926
+
G. †Distacodus Pander 1856
+
†Distacodus oklahomensis Harlton 1933
†Distacodus procerus Ethington 1959
G. †Dolborodina Moskalenko 2003
+
†Dolborodina juktaliensis Moskalenko 1973
G. †Enantiognathus Mosher and Clark 1965
+
Invalid names: Enantiognathus ziegleri Diebel 1956 [nomen dubium]
G. †Eofalodus Harris 1962
Infracl. †Euconodonta Janvier 1997
+
Or. †Proconodontida Sweet 1988
+
Fm. †Cordylodontidae Lindström 1970
Fm. †Fryxellodontidae Miller 1980
Fm. †Proconodontidae Lindstrom 1970
G. †Fahraeosodus Stouge and Bagnoli 1988
G. †Falcodus Huddle 1934
+
†Falcodus secundus Youngquist 1945
†Falcodus ultimus Branson and Mehl 1934
G. †Gagievodus Baranov and Al'khovik 2003
G. †Gobduntaulepis Doweld 2014
+
†Gobduntaulepis bispinatus Pianovskij 1989
Invalid names: Acantholepis Pianovskij 1989 [replaced]
G. †Iowagnathus Liu et al. 2017
+
†Iowagnathus grandis Liu et al. 2017
G. †Llandoverygnathus Walliser 1972
G. †Lundodus Bagnoli and Stouge 1997
+
†Lundodus gladiatus Lindström 1955
G. †Minimodus Rasmussen 2001
+
†Minimodus maocaopus Zhang 1998
G. †Nasusgnathus Ni 1983
+
G. †Noixodontus McCracken and Barnes 1982
G. †Omanognathus Miller et al. 2017
+
†Omanognathus daiqaensis Miller et al. 2017
G. †Oslodus Zhang 1998
+
Or. †Ozarkodinida Dzik 1976
+
Fm. †Anchignathodontidae Clark 1972
+
G. †Hindeodus Rexroad and Furnish 1964
+
Invalid names: Anchignathodus Sweet 1970 [synonym]
G. †Pseudohindeodus Gullo and Kozur 1992
Fm. †Elictognathidae Austin and Rhodes 1981
+
G. †Elictognathus Cooper 1939
+
Invalid names: Solenodella Branson and Mehl 1944 [synonym]
Fm. †Ellisoniidae Clark 1972
+
G. †Ellisonia
G. †Foliella Budurov and Pantic 1973
G. †Parafurnishius Yang et al. 2014
G. †Parapachycladina Zhang et al. 1997
G. †Stepanovites Kozur 1975
+
Invalid names: Kamagnathus Chernykh et al. 2001 [synonym], Sweetina Wardlaw and Collinson 1986 [synonym]
Fm. †Gondolellidae Lindstrom 1970
+
G. †Acuminatella Orchard 2013
G. †Carnepigondolella Kozur 2003
G. †Clarkina Kozur 1990
Subfm. †Cornudininae Orchard 2005
G. †Cratognathodus Mosher 1968
G. †Epigondolella Mosher 1968
+
Invalid names: Carinella Budurov 1973 [synonym]
Subfm. †Epigondolellinae Orchard 2005
G. †Gondolella Stauffer and Plummer 1932
G. †Hayashiella Kiliç et al. 2015
G. †Jinogondolella Mei and Wardlaw 1994
G. †Kraussodontus Orchard 2013
G. †Mesogondolella Kozur 1989
G. †Metapolygnathus Hayashi 1968
Subfm. †Mullerinae Orchard 2005
G. †Neoclarkina Henderson and Mei 2007
Subfm. †Neogondolellinae Hirsch 1994
Subfm. †Novispathodinae Orchard 2005
Subfm. †Paragondolellinae Orchard 2005
G. †Paullella Orchard 2008
G. †Primatella Orchard 2013
Subfm. †Scythogondolellinae Orchard 2007
Subfm. †Sephardiellinae Plasencia et al. 2007
G. †Sweetospathodus Kozur et al. 1998
Invalid names: Xaniognathidae Sweet 1981 [synonym]
Superfm. †Gondolelloidea Lindstrom 1970
+
Fm. †Gladigondolellidae Ishida and Hirsch 2011
Fm. †Sweetognathidae Ritter 1986
Fm. †Idiognathodontidae Harris and Hollingsworth 1933
+
G. †Gnathodus
G. †Idiognathodus Gunnell 1931
G. †Protognathodus Ziegler 1969
Fm. †Kockelellidae Klapper 1981
+
G. †Ancoradella Walliser 1964
G. †Ctenognathodus Fay 1959
G. †Kockelella Walliser 1957
G. †Microzarkodina Lindström 1971
+
†Microzarkodina hagetiana Stouge and Bagnoli 1990
Subor. †Ozarkodinina Dzik 1976
+
Fm. †Bactrognathidae Lindstrom 1970
G. †Ozarkodina Branson and Mehl 1933
+
Invalid names: Hindeodella Bassler 1925 [objective synonym], Plectospathodus Branson and Mehl 1933 [objective synonym]
Fm. †Palmatolepidae Müller 1956
Superfm. †Polygnathacea Bassler 1925
Fm. †Palmatolepididae Sweet 1988
+
G. †Tripodellus Sannemann 1955
G. †Periodon Hadding 1913
+
†Periodon aculeatus Hadding 1913
+
Invalid names: Periodon flabellata Graves and Ellison 1941 [synonym]
†Periodon grandis Ethington 1959
†Periodon hankensis Stouge 2012
†Periodon macrodentatus Graves and Ellison 1941
Invalid names: Loxognathus Graves and Ellison 1941 [synonym]
+
†Plectodina alpina Serpagli 1967
Fm. †Pterospathodontidae Cooper 1977
+
G. †Apsidognathus Walliser 1964
G. †Aulacognathus Mostler 1967
+
Invalid names: Neospathognathodus Nicoll and Rexroad 1968 [synonym]
G. †Carniodus Walliser 1964
G. †Galerodus Tsyganko and Chermnyh 1987
G. †Icriognathus Männik 1992
G. †Johnognathus Mashkova 1977
G. †Polygnathoides Branson and Mehl 1933
Fm. †Spathognathodontidae Hass 1959
+
G. †Flajsella Valenzuela-Rios and Murphy 1997
G. †Lanea Murphy and Valenzuela-Rios 1999
G. †Tortodus Weddige 1977
G. †Zieglerodina Murphy et al. 2004
Fm. †Spathognathodontodae Hass 1959
+
G. †Wurmiella Murphy et al. 2004
Fm. †Vjalovognathidae Yuan et al. 2016
+
G. †Vjalovognathus Kozur 1977
Invalid names: Gondolellidea Lindstroem 1970 [empty]
G. †Palmatodella Bassler 1925
+
†Palmatodella paridens Huddle 1934
Or. †Panderodontida Sweet 1988
+
G. †Cristodus
G. †Loxodus Furnish 1938
+
†Loxodus dissectus An 1983
+
Invalid names: Loxodus curvatus Stouge 1984 [synonym]
Fm. †Panderodontidae Lindström 1970
+
G. †Belodina Ethington 1959
+
Invalid names: Belodus Branson and Mehl 1933 [replaced]
G. †Culumbodina Moskalenko 1973
G. †Naimanodus Tolmacheva 2013
G. †Neopanderodus Ziegler and Lindström 1971
G. †Nudibelodina Jeppsson 1997
G. †Panderodus Ethington 1959
G. †Parabelodina Sweet 1979
G. †Parapanderodus Stouge 1984
G. †Plegagnathus Ethington and Furnish 1959
G. †Pseudobelodina Sweet 1979
G. †Thrincodus Bauer 1987
+
†Thrincodus palaris Pyle and Barnes 2003
G. †Pandorinella Müller and Müller 1957
+
†Pandorinella insita Stauffer 1940
Or. †Paraconodontida Müller 1962
+
G. †Bengtsonella Müller and Hinz 1991
G. †Furnishina Müller 1959
+
†Furnishina furnishi Muller 1959
Superfm. †Furnishinacea Müller 1981
+
Fm. †Furnishinidae Müller and Nogami 1971
Fm. †Westergaardodinidae Mueller 1959
G. †Hertzina Mueller 1959
+
†Hertzina antiqua Yang and He 1984
†Hertzina guizhouensis Qian and Yin 1984
†Hertzina intermedia Yang and He 1984
G. †Muellerodus Miller 1980
+
†Muellerodus cambricus Müller 1959
G. †Nogamiconus Miller 1980
+
†Nogamiconus sinensis Nogami 1966
G. †Phakelodus Miller 1984
+
†Phakelodus tenuis Muller 1959
G. †Proacodus Müller 1959
G. †Problematoconites Mueller 1959
G. †Prooneotodus Mueller 1959
+
†Prooneotodus gallatini Müller 1959
G. †Prosagittodontus Müller and Nogami 1971
+
†Prosagittodontus dahlmani Müller 1959
G. †Serratocambria Müller and Hinz 1991
G. †Tarimspira Yue and Gao 1992
+
†Tarimspira zhejiangensis He and Yu 1992
Invalid names: Fengzuella He and Yu 1992 [synonym]
G. †Trolmenia Müller and Hinz 1991
G. †Westergaardodina Müller 1959
+
Invalid names: Amphigeisinacea Clark et al. 1981 [empty]
G. †Parvigondolella Kozur and Mock 1972
+
†Parvigondolella andrusovi Kozur and Mock 1972
G. †Pollognathus Kozur and Mostler 1970
Or. †Polyplacognathida Stouge and Bagnoli 1999
+
Invalid names: Cahabagnathidae Stouge and Bagnoli 1999 [empty]
Or. †Prioniodontida Dzik 1976
+
Fm. †Acodontidae Dzik 1994
+
G. †Acodus Pander 1856
+
Invalid names: Acontiodus Pander 1856 [synonym]
G. †Diaphorodus Kennedy 1980
G. †Nealeodus Stouge 2012
G. †Pteracontiodus Harris and Harris 1965
G. †Triangulodus van Wamel 1974
G. †Tripodus Bradshaw 1969
G. †Tropodus Kennedy 1980
G. †Anticostiodus Zhang and Barnes 2000
+
†Anticostiodus fahraeusi Zhang and Barnes 2000
Fm. †Balognathidae Hass 1959
+
G. †Amorphognathus Branson and Mehl 1933
+
Invalid names: Balognathus Rhodes 1953 [synonym]
G. †Baltoniodus Lindstrom 1971
G. †Birksfeldia Orchard 1980
G. †Complexodus Dzik 1976
G. †Lenodus Sergeeva 1963
G. †Prioniodus Pander 1856
G. †Promissum Kovacs-Endrody 1986
G. †Pterospathodus Walliser 1964
G. †Rhodesognathus Bergstrom and Sweet 1966
G. †Trapezognathus Lindström 1955
Invalid names: Prioniodontidae Ulrich and Bassler 1926 [synonym]
Superfm. †Balognathoidea Hass 1959
+
Fm. †Pygodontidae Bergström 1981
Fm. †Cyrtoniodontidae Hass 1959
+
G. †Bryantodina Stauffer 1935
Fm. †Distomodontidae Klapper 1981
+
G. †Coryssognathus Link and Druce 1972
G. †Distomodus Branson and Branson 1947
+
Invalid names: Hadrognathus Walliser 1964 [synonym]
+
†Histiodella holodentata Ethington and Clark 1982
+
Invalid names: Histiodella tableheadensis Stouge 1984 [synonym]
†Histiodella kristinae Stouge 1984
†Histiodella labiosa Bauer 2010
†Histiodella serrata Harris 1962
†Histiodella sinuosa Graves and Ellison 1941
Fm. †Multioistodontidae Harris 1964
+
G. †Acanthodina Moskalenko 1973
G. †Leptochirognathus Branson and Mehl 1943
G. †Multioistodus Cullison 1938
G. †Paraprioniodus Ethington and Clark 1982
G. †Oepikodus Lindström 1955
Fm. †Oistodontidae Lindström 1970
+
G. †Graciloconus Pyle and Barnes 2002
G. †Jumudontus Cooper 1981
G. †Oistodus Pander 1856
G. †Rossodus Repetski and Ethington 1983
G. †Tricostatus Ji and Barnes 1994
Invalid names: Juanognathinae Bergström 1981 [empty], Oistodontinae Lindström 1970 [empty], Tripodontinae Sweet 1988 [empty]
Fm. †Paracordylodontidae Bergström 1981
+
G. †Fahraeusodus Stouge and Bagnoli 1988
G. †Oelandodus van Wamel 1974
G. †Protoprioniodus McTavish 1973
G. †Paracordylodus Lindström 1955
+
†Paracordylodus gracilis Lindström 1955
G. †Phragmodus Branson and Mehl 1933
+
†Phragmodus flexuosus Moskalenko 1973
†Phragmodus undatus Branson and Mehl 1933
Invalid names: Cyrtoniodus Stauffer 1935 [synonym]
Fm. †Plectodinidae Sweet 1988
+
G. †Tangshanodus An 1983
Or. †Prioniodinida Sweet 1988
+
Fm. †Chirognathidae Branson and Mehl 1944
Fm. †Prioniodinidae Bassler 1925
G. †Pseudooneotodus Drygant 1974
Subor. †Prioniodinina Sweet 1988
+
G. †Erika Murphy and Matti 1982
G. †Erismodus
+
Invalid names: Microcoelodus Branson and Mehl 1933 [synonym], Ptiloconus Sweet 1955 [synonym]
G. †Erraticodon Dzik 1978
G. †Hibbardella Bassler 1925
G. †Kladognathus Rexroad 1958
+
Invalid names: Lambdagnathus Rexroad 1958 [synonym], Magnilaterella Rexroad and Collinson 1963 [synonym]
G. †Oulodus Branson and Mehl 1933
+
Invalid names: Ligonodina [synonym]
Superfm. †Prioniodontacea Bassler 1925
+
Fm. †Icriodontidae Müller and Müller 1957
Fm. †Phragmodontidae Bergström 1981
Fm. †Polyplacognathidae Bergström 1981
Invalid names: Oepikodontidae Bergström 1981 [empty]
Fm. †Rhipidognathidae Lindström 1970
+
G. †Appalachignathus Bergström et al. 1974
G. †Bergstroemognathus Serpagli 1974
G. †Rhipidognathus Branson et al. 1951
G. †Tasmanognathus Burrett 1979
G. †Sagittodontina Knüpfer 1967
+
†Sagittodontina robusta Knüpfer 1967
Fm. †Strachanognathidae Bergstrom 1981
+
G. †Decoriconus Cooper 1976
G. †Scabbardella Orchard 1980
Invalid names: Periodontidae Lindström 1970 [empty]
+
Fm. †Acanthodontidae Lindström 1970
+
G. †Acanthodistacodus Tolmacheva et al. 2024
+
Invalid names: Drepanodistacodus Moskalenko 1977 [replaced]
G. †Parapaltodus Stouge 1984
G. †Scalpellodus Dzik 1976
G. †Ulrichodina Furnish 1938
Fm. †Clavohamulidae Lindström 1970
+
G. †Hispidodontus Nicoll and Shergold 1991
G. †Nericodus
Fm. †Cornuodontidae Stouge 1984
+
G. †Cornuodus
G. †Macerodus
Fm. †Drepanoistodontidae Fahraeus and Nowlan 1978
+
G. †Drepanoistodus Lindstrom 1971
G. †Laurentoscandodus Landing et al. 1996
G. †Nordiodus Serpagli 1967
G. †Paltodus Pander 1856
G. †Paroistodus Lindström 1971
G. †Venoistodus Löfgren 2006
Fm. †Oneotodontidae Miller 1980
+
G. †Oneotodus Lindström 1955
G. †Teridontus Miller 1980
G. †Utahconus Miller 1980
Fm. †Protopanderodontidae Lindström 1970
+
G. †Colaptoconus Kennedy 1994
+
Invalid names: Glyptoconus Kennedy 1980 [replaced]
G. †Drepanodus Pander 1856
G. †Eucharodus Kennedy 1980
G. †Juanognathus Serpagli 1974
+
Invalid names: Aurilobodus Xiang and Zhang 1983 [synonym]
G. †Monocostodus Miller 1980
G. †Parutahconus Landing 1982
G. †Planusodus Pyle and Barnes 2002
G. †Polycostatus Ji and Barnes 1994
G. †Protopanderodus Lindström 1971
G. †Scandodus Lindstrom 1955
G. †Staufferella Sweet et al. 1975
G. †Striatodontus Ji and Barnes 1994
G. †Stultodontus Ji and Barnes 1994
G. †Ventricodus Pyle and Barnes 2002
Fm. †Serratognathidae Zhen et al. 2009
+
G. †Serratognathoides An 1987
G. †Pseudobelodella Armstrong 1990
+
†Pseudobelodella silurica Armstrong 1990
G. †Rexroadus Zhang and Barnes 2002
+
†Rexroadus kentuckyensis Branson and Branson 1947
†Rexroadus nathani McCracken and Barnes 1981
G. †Rhynchognathodus Ethington 1959
G. †Rotundoconus An and Zhang 1983
G. †Sagittodontus Rhodes 1953
G. †Silurognathus Jeppsson 2005
+
†Silurognathus maximus Jeppsson 2005
G. †Spathognathodus Branson and Mehl 1941
+
†Spathognathodus asymmetricus Bischoff and Sannemann 1958
†Spathognathodus dubius Ethington and Furnish 1962
†Spathognathodus fundamentus Walliser 1957
†Spathognathodus optimus Moskalenko 1966
†Spathognathodus transitans Bischoff and Sannemann 1958
G. †Tardogondolella Kozur and Mostler 1971
+
†Tardogondolella postera Kozur and Mostler 1971
G. †Tokognathus Nieper 1969
G. †Trichonodella Branson and Branson 1947
+
†Trichonodella blanda Stauffer 1940
†Trichonodella inconstans Ziegler 1960
G. †Youngquistognathus Myshkina and Zhuravlev 2005
G. †Zygognathus Branson et al. 1951
+
†Zygognathus manifestus Moskalenko 1973
Invalid names: Amphigeisinidae Miller 1981 [empty], Euconodonta Müller and Hinz 1991 [empty], Euconodonta Müller and Hinz 1991 [empty], Hindeodella andrusovi Kozur and Mostler 1972 [nomen dubium], Polygnathida Barskov 1995 [empty]
G. †Declinognathodus Dunn 1966
+
†Declinognathodus noduliferus Ellison and Graves 1941
+
†Dichodella exilis Serpagli 1967
Superfm. †Distacodontacea Bassler 1925
+
Invalid names: Distacodontidae Bassler 1925 [empty], Teridontidae Miller 1981 [empty], Ulrichodinidae Bergstrom 1981 [empty]
G. †Elsonella
G. †Eocarniodus Orchard 1980
+
†Eocarniodus gracilis Rhodes 1955
G. †Evencodus
G. †Exochognathus Pollock et al. 1970
+
†Exochognathus brassfieldensis Branson and Branson 1947
†Exochognathus expansus Nicoll and Rexroad 1969
Superfm. †Hibbardellacea Mueller 1956
+
Fm. †Hibbardellidae Müller 1956
+
G. †Delotaxis Klapper and Philip 1971
G. †Huddlella
G. †Istorinus Knüpfer 1967
+
†Istorinus erectus Knüpfer 1967
+
Invalid names: Istorinus disymmetricus Knüpfer 1967 [synonym], Istorinus humilis Knüpfer 1967 [synonym], Istorinus postdentatus Knüpfer 1967 [synonym], Istorinus recurvus Knüpfer 1967 [synonym]
Fm. †Mestognathidae Austin and Rhodes 1981
+
G. †Mestognathus Bischoff
G. †Oligodus
G. †Ozarcodina Walliser
Superfm. †Panderodontacea Lindstrom 1970
+
Invalid names: Scolopodontidae Bergstrom 1981 [empty]
G. †Paraprionodus Ethington and Clark 1982
G. †Playfordia Glenister and Klapper 1966
G. †Polygnathellus Branson and Mehl 1933
+
†Polygnathellus emarginatus Branson and Mehl 1933
G. †Roundya
+
†Roundya aurita Sannemann 1955
†Roundya laminata Branson and Mehl 1934
†Roundya latipennata Ziegler 1958
G. †Tuxekania
G. †Volgelgnathus Norby and Rexroad 1985
Invalid names: Chirognathacea Branson and Mehl 1944 [empty], Fryxellodontacea Miller 1981 [empty], Proconodontacea Miller 1981 [empty]
Cl. Myxini Jaekel 1911
+
G. †Myxineidus Poplin et al. 2001
+
†Myxineidus gononorum Poplin et al. 2001
Or. Myxiniformes [hagfish]
+
Fm. Myxinidae Rafinesque 1815
+
G. Anopsus Rafinesque 1815
+
G. Eptatretus Cloquet 1819
+
Invalid names: Bdellostoma Müller 1835 [synonym], Paramyxine Dean 1904 [synonym], Polistotrema Gill 1881 [synonym], Quadratus Thiergart and Frantz 1962 [synonym]
G. Heptatrema Duméril 1856
G. Hexabranchus Schultze 1835
G. Homea Fleming 1822
G. Muraenoblenna Lacépède 1803
Subfm. Myxininae
+
G. Myxine Linnaeus 1758
G. Nemamyxine Richardson 1958
G. Notomyxine Nani and Gneri 1951
+
G. Rubicundus Fernholm
Invalid names: Hyperotreti [synonym]
G. †Myxinikela Bardack 1991
+
†Myxinikela siroka Bardack 1991
Subcl. Myxinoidea [hagfish]
+
G. †Tethymyxine Miyashita et al. 2019
+
†Tethymyxine tapirostrum Miyashita et al. 2019
Cl. Petromyzontida Bonaparte 1831
+
Fm. †Gilpichthyidae Halstead 1993
+
G. †Gilpichthys Bardack and Richardson 1977
+
†Gilpichthys greeni Bardack and Richardson 1977
Fm. †Pipisciidae Halstead 1993
+
G. †Pipiscius Bardack and Richardson 1977
+
†Pipiscius zangerli Bardack and Richardson 1977
Invalid names: Hyperoartia Müller 1844 [synonym]
Invalid names: Hypospondyli Jaekel 1911 [empty], Marsipobranchii [synonym], Palaeospondyli Jaekel 1911 [empty], Petromyzontes [empty]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: marinesubp
Locomotion: actively mobilep
Created: 2017-04-17 15:11:50
Modified: 2017-04-17 15:11:50
Source: subp = subphylum, p = phylum
References: Kiessling 2004, Carroll 1988

Age range

Maximum range based only on fossils: base of the Meishucunian to the top of the Neogene or 530.70000 to 2.58000 Ma
Minimum age of oldest fossil (stem group age): 525.5 Ma

Collections (9058 total)

Oldest occurrences

Time interval Ma Country or state Original ID and collection number
Nemakit-Daldynian538.8 - 525.5Russian Federation (Krasnoyarsk) Hertzina pensa (99482)
Nemakit-Daldynian538.8 - 525.5China (Zhejiang) Fengzuella zhejiangensis (86660)
Nemakit-Daldynian538.8 - 525.5China (Hunan) Hertzina sp. (97714)
Nemakit-Daldynian538.8 - 525.5Russian Federation (Siberia) Hertzina pensa (50424 50425)
Cambrian538.8 - 486.85Sweden (Uppland) Cordylodus sp., Cordylodus prion (191678)
Cambrian538.8 - 486.85Russian Federation (St. Petersburg) Furnishina furnishi, Phakelodus tenuis (191187)
Cambrian538.8 - 486.85Norway (Naersnes) Drepanoistodus sp., Utahconus utahensis, Semiacontiodus nogamii, Teridontus nakamurai, Cordylodus proavus, Eoconodontus notchpeakensis, Fryxellodontus sp., Phakelodus tenuis (156964)
Cambrian538.8 - 486.85China (Jilin Provence) Cordylodus pravus, Stenodontus jilinensis, Furnishina furnishi, Nogamiconus sp., Prooneotodus rotundatus, Phakelodus tenuis (156915) Cordylodus proavus, Eoconodontus notchpeakensis, Stenodontus jilinensis, Prooneotodus rotundatus (156920) Drepanodus suberectus, Utahconus utahensis, Teridontus gracilis, Teridontus huanghuachangensis, Teridontus nakamurai, Monocostodus serierensis, Hirsutodontus simplex, Cordylodus drucei, Cordylodus proavus, Cordylodus intermedius, Eoconodontus notchpeakensis, Albiconus postcostatus, Furnishina primitiva, Prooneotodus rotundatus, Prooneotodus gallatini, Muellerodus hunjiangensis (156926) Drepanodus suberectus, Utahconus utahensis, Teridontus huanghuachangensis, Teridontus nakamurai, Monocostodus serierensis, Cordylodus drucei, Cordylodus intermedius, Eoconodontus notchpeakensis, Furnishina primitiva, Prooneotodus rotundatus, Prooneotodus gallatini, Muellerodus hunjiangensis (156927) Semiacontiodus nogamii, Teridontus nakamurai, Cordylodus proavus, Eoconodontus notchpeakensis, Fryxellodontus inornatus, Stenodontus jilinensis, Furnishina primitiva, Nogamiconus sp., Prooneotodus rotundatus, Phakelodus tenuis (156918) Semiacontiodus nogamii, Teridontus nakamurai, Cordylodus proavus, Eoconodontus notchpeakensis, Stenodontus jilinensis, Prooneotodus roundatus, Phakelodus tenuis (156917) Teridontus huanghuachangensis, Teridontus nakamurai, Hirsutodontus simplex, Cordylodus proavus, Eoconodontus notchpeakensis, Albiconus postcostatus, Furnishina primitiva, Prooneotodus rotundatus (156925) Teridontus nakamurai, Cordylodus proavus, Eoconodontus notchpeakensis (156923) Teridontus nakamurai, Cordylodus proavus, Eoconodontus notchpeakensis, Stenodontus jilinensis, Furnishina primutiva, Furnishina furnishi, Prooneotodus rotundatus, Phakelodus tenuis, Muellerodus hunjiangensis (156913) Teridontus nakamurai, Cordylodus proavus, Eoconodontus notchpeakensis, Stenodontus jilinensis, Prooneotodus rotundatus, Phakelodus tenuis (156911) Teridontus nakamurai, Cordylodus proavus, Fryxellodontus inornatus, Stenodontus jilinensis, Stenodontus compressus, Prooneotodus rotundatus, Muellerodus hunjiangensis (156914) Utahconus utahensis, Teridontus huanghuachangensis, Cordylodus drucei, Cordylodus proavus, Cordylodus intermedius, Cordylodus lindstromi, Prooneotodus gallatini (156930)
Meishucunian530.7 - 521.0China (Zhejiang) Fengzuella zhejiangensis (108039) Hertzina sp. (108038)
Meishucunian530.7 - 521.0China (Sichuan) Hertzina elongata (108312) Hertzina intermedia, Hertzina antiqua (107389)
Tommotian525.5 - 521.0China (Hubei) Hertzina guizhouensis (155444)
Tommotian - Atdabanian525.5 - 516.0Canada (Nova Scotia) Hertzina elongata (6897)
Atdabanian521.0 - 516.0China (Zhejiang) Fengzuella zhejiangensis (96666 96667)
Atdabanian521.0 - 516.0Kazakhstan Oneotodus triangulus (99300)
Atdabanian521.0 - 516.0Russian Federation (Siberia) Fengzuella zhejiangensis (174252)
Atdabanian521.0 - 516.0United Kingdom (England) Hertzina elongata (79933) Prooneotodus sp. indet (79940)
Atdabanian521.0 - 516.0Canada (Nova Scotia) Hertzina elongata (9385 9387 9390)
Atdabanian - Botomian521.0 - 512.1Canada (Nova Scotia) Hertzina elongata (9391)
Branchian516.2 - 506.5United Kingdom (England) Hertzina elongata (79928 79931 79932)
Dyeran515.3 - 509.7Greenland (Peary Land) Hertzina sp. (210618)