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

Trigoniida

Bivalvia - Trigoniida

Synonymy list
YearName and author
1889Trigonioida Dall
1965Trigonioida Newell p. 18
1980Trigonioida Vokes p. 69
2002Trigonioida Giribet and Wheeler
2002Trigonioida Sepkoski
2006Trigonioida Bieler and Mikkelsen p. 230
2008Trigonioida Scholz et al.
2010Trigoniida Bouchet et al.
2011Trigoniida Carter et al. p. 11

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

RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
superphylumLophotrochozoa
phylumMollusca
classBivalvia
RankNameAuthor
Eubivalvia
subclassAutobranchia(Groblen 1894)
infraclassHeteroconchia(Gray 1854)
UniomorphiGray 1854
UnioniGray 1854
UnionataGray 1854
orderTrigoniida(Dall 1889)
orderTrigoniida(Dall 1889)

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.

Or. Trigoniida Dall 1889
show all | hide all
G. †Gobiella
G. †Heslingtonia Fleming 1987
G. †Kupenga
G. †Macrotrigonia Camacho and Olivero 1985
Superfm. †Myophorelloidea Kobayashi 1954
+
Unr. †Megatrigonioidae van Hoepen 1929
+
Unr. †Megatrigoniitae van Hoepen 1929
+
Fm. †Megatrigoniidae van Hoepen 1929
+
Subfm. †Megatrigoniinae van Hoepen 1929
Subfm. †Pterotrigoniinae van Hoepen 1929
+
Invalid names: Linotrigoniinae Yanin 2004 [synonym]
Invalid names: Anditrigoniidae Leanza 1993 [synonym]
Invalid names: Iotrigoniidae Saveliev 1958 [empty]
Unr. †Rutitrigoniitae van Hoepen 1929
+
Invalid names: Rutitrigoniidae van Hoepen 1929 [empty]
Unr. †Myophorelloidae Kobayashi 1954
+
Fm. †Buchotrigoniidae Leanza 1993
+
Subfm. †Syrotrigoniinae Perez and Reyes 1997
+
G. †Syrotrigonia Cox 1952
Invalid names: Buchotrigoniinae Leanza 1993 [empty]
Fm. †Laevitrigoniidae Saveliev 1958
+
Subfm. †Frenguelliellinae Nakano 1960
+
G. †Frenguelliella Leanza 1942
G. †Jaworskiella Leanza 1942
G. †Quadratojaworskiella Reyes and Perez 1980
Subfm. †Laevitrigoniinae Saveliev 1958
+
G. †Laevitrigonia Lebküchner 1932
Fm. †Myophorellidae Kobayashi 1954
+
Subfm. †Myophorellinae Kobayashi 1954
+
G. †Austromyophorella Cooper 2011
G. †Myophorella Bayle 1878
+
Invalid names: Promyophorella [synonym]
G. †Orthotrigonia Cox 1952
Invalid names: Myophorellini Kobayashi 1954 [empty], Steinmanellini Cooper 1991 [empty]
Subfm. †Steinmanellinae Cooper 1991
+
G. †Neuquenella Cooper and Leanza 2017
G. †Philippiella Cooper and Leanza 2017
G. †Pseudoyaadia Cooper and Leanza 2017
G. †Splenditrigonia Leanza 1993
G. †Steinmanella Crickmay 1930
G. †Stoyanowella Cooper and Leanza 2017
G. †Transitrigonia Dietrich 1933
G. †Weaverella Cooper and Leanza 2017
Subfm. †Vaugoniinae Kobayashi 1954
+
Tr. †Vaugoniini Kobayashi 1954
Invalid names: Quadratotrigoniini Saveliev 1958 [empty]
Fm. †Steinmanellidae Cooper 1991
+
Subfm. †Yaadiinae Cooper and Leanza 2017
+
G. †Louella Cooper and Leanza 2017
+
Louella fitchi Packard 1921
+
Invalid names: Trigonia branneri Anderson 1958 [synonym]
G. †Popenoella Cooper and Leanza 2017
+
Popenoella hemphilli Anderson 1958
Invalid names: Packardella Kobayashi and Amano 1955 [synonym]
G. †Tashiroella Cooper and Leanza 2017
+
Tashiroella tanii Tashiro and Morozumi 1982
G. †Yaadia Crickmay 1930
+
Yaadia branti Saul 1978
Yaadia californiana Packard 1921
Yaadia jonesi Saul 1978
Yaadia leana Gabb 1900
+
Invalid names: Trigonia colusaensis Anderson 1958 [synonym], Trigonia wheelerensis Anderson 1958 [synonym]
Yaadia lewisagassizi Crickmay 1930
Yaadia pinea Saul 1978
Yaadia robusta Saul 1978
Yaadia romanovskii Archangelski 1900
Yaadia tryoniana Gabb 1864
Yaadia whiteavesi Packard 1921
+
Invalid names: Trigonia perrinsmithi Anderson 1958 [synonym]
G. †Yeharella Kobayashi and Amano 1955
+
Yeharella japonica Yehara 1923
Invalid names: Frenguelliellidae Nakano 1960 [empty]
Superfm. †Pseudocardinioidea Martinson 1961
+
Fm. †Pseudocardiniidae Martinson 1961
+
G. †Apseudocardinia Liu and Zhu 1978
+
Apseudocardinia sichuanensis Liu and Zhu 1978
G. †Hamiconcha Huang et al. 1981
G. †Jiangxiella Liu 1968
+
Jiangxiella plana Liu 1976
G. †Pseudocardinia Martinson 1959
G. †Xinjiangconcha Wei 1984
+
G. †Xinyuella Chen and Xu 1980
+
Xinyuella liuyangensis Gu and Liu 1976
Fm. †Utschamiellidae Kolesnikov 1977
+
G. †Utschamiella Ragozin 1937
Subor. Trigoniina Dall 1899
+
Superfm. Trigoniacea Lamarck 1819
+
G. †Anopisthodon Philippi 1899
+
Anopisthodon obesa Philippi 1847
G. †Aulacopleurum Philippi 1899
Superfm. Trigonioidea Lamarck 1819
+
Fm. †Costatoriidae Newell and Boyd 1975
+
G. †Procostatoria Newell and Boyd 1975
+
Procostatoria cooperi Newell and Boyd 1975
Procostatoria gloveri Newell and Boyd 1975
Procostatoria sexradiata Branson 1930
Fm. †Eoschizodidae Newell and Boyd 1975
+
G. †Eoschizodus Cox 1951
+
Eoschizodus hispanicus Amler 2010
Eoschizodus truncatus Goldfuss 1837
Fm. †Groeberellidae Pérez et al. 1995
+
G. †Groeberella Leanza 1993
+
Groeberella neuquensis Groeber 1924
Fm. †Ladinomyidae Prinoth and Posenato 2023
+
G. †Ladinomya Prinoth and Posenato 2023
+
Ladinomya fosteri Prinoth and Posenato 2023
Fm. †Myophoriidae Bronn 1847
+
G. †Acanomyphoria Guo 1985
+
G. †Amlerella Franke 2016
+
Amlerella dahmeri Drevermann 1907
Amlerella peregrina Beushausen 1895
G. †Atalantia Termier and Verriez 1974
+
Atalantia trigonioides Termier 1974
G. †Baidiostraca Guo 1988
+
G. †Caledogonia Freneix and Avias 1977
+
Caledogonia globosa Freneix and Avias 1977
G. †Dolabra M'Coy 1844
+
Dolabra arcina Waagen 1881
Dolabra unilateralis Sowerby 1840
+
Invalid names: Dolabra condrusorum Beushausen 1895 [synonym]
G. †Elegantinia Waagen 1907
+
Elegantinia elegans Dunker 1849
Elegantinia paullorum Boyd and Newell 1997
Invalid names: Lyriomyophoria Kobayashi 1954 [objective synonym]
G. †Erugonia Newton et al. 1987
+
Erugonia canyonensis Newton et al. 1987
G. †Gruenewaldia von Wöhrmann 1889
+
Gruenewaldia decussata Munster 1838
Gruenewaldia iranica Hautmann 2001
Gruenewaldia magna Hautmann 2001
Gruenewaldia woehrmanni Bittner 1895
G. †Guizhoumyophoria Fang 2009
+
Invalid names: Quadratia Yin 1974 [replaced]
G. †Hefteria
G. †Heminajas Wöhrmann 1891
+
Heminajas balatonis Frech 1905
Heminajas fissidentata von Wöhrmann 1889
Heminajas fornulata Chen 1976
Heminajas geyeri Waagen 1907
Heminajas haastiana Wilckens 1918
Heminajas woehrmanni Waagen 1907
G. †Myophoria Bronn 1834
+
Subg. †Myophoria (Rhenania) Waagen 1907
Subg. †Myophoria (Tropiphora) Waagen 1907
Myophoria acuticostata Broili 1904
Myophoria adornata McLearn 1942
Myophoria ambilineata White 1877
Myophoria beringiana Smith 1927
Myophoria bittneri Newton 1923
Myophoria blainvillei Klipstein 1843
Myophoria blakei Cox 1932
Myophoria brockensis Smith 1927
Myophoria cairnesi McLearn 1942
Myophoria chenopus Laube 1865
Myophoria costulata Bittner 1895
Myophoria coxi Awad 1945
Myophoria ebbae Isberg 1934
Myophoria elliptica Ogilvie Gordon 1927
Myophoria germanica Hohenstein 1914
Myophoria goldfussi Alberti 1834
Myophoria harpa Munster 1837
Myophoria heslingtonensis Trechmann 1917
Myophoria incurvata Seebach 1867
Myophoria inflata Emmrich 1853
Myophoria intermedia Schauroth 1857
Myophoria kefersteini Münster 1828
Myophoria kokeni Bittner 1895
Myophoria kuuoruensis Skwarko 1967
Myophoria liasica Stoppani 1857
Myophoria maxima Krumbeck 1923
Myophoria mexicana de Cserna 1961
Myophoria nifukokoensis Krumbeck 1924
Myophoria ornata Münster 1841
Myophoria picta Lepsius 1878
Myophoria proharpa Frech 1912
Myophoria reziae Stoppani 1865
Myophoria solitaria Bittner 1895
Myophoria staggi Skwarko 1967
Myophoria stenonis Stoppani 1865
Myophoria subtrigonata Airaghi 1907
Myophoria subvestita Krumbeck 1913
Myophoria timorensis Krumbeck 1924
Myophoria transversa Bornemann 1856
Myophoria vestita Alberti 1864
Myophoria volzi Frech 1912
Myophoria vulgaris von Schlotheim 1820
Myophoria zeballos McLearn 1942
Invalid names: Trigonellites von Schlotheim 1820 [synonym]
G. †Neoschizodus Giebel 1855
+
Subg. †Neoschizodus (Okunominetania) Ichikawa 1949
Neoschizodus cardissoides Ziethen 1830
Neoschizodus elongatus Giebel 1856
Neoschizodus elongatus Philippi 1898
Neoschizodus elongatus Boyd and Newell 1997
Neoschizodus kitakamiensis Nakazawa and Newell 1968
Neoschizodus kobayashii Ichikawa 1951
Neoschizodus kolymensis Bychkov et al. 1976
Neoschizodus laevigatus Ziethen 1830
Neoschizodus mongumensis Skwarko 1967
Neoschizodus ovatus Goldfuss 1838
Neoschizodus permicus Nakazawa 1960
Neoschizodus thaynesianus Newell and Boyd 1975
G. †Paraschizodus Newell and Boyd 1975
+
Paraschizodus elongatus Newell and Boyd 1975
Paraschizodus rothi Newell and Boyd 1975
G. †Rhenania Waagen 1907
+
G. †Rhenanomya LaRoque 1969
+
Rhenanomya crassa Solle 1956
Rhenanomya tumida Fuchs 1915
G. †Toechomya
G. †Trionychodia Guo 1988
+
Trionychodia bella Guo 1988
G. †Yangella Liu and Gu 1988
+
Yangella cuneatiformis Liu and Gu 1988
Invalid names: Cytherodontidae Miller [synonym], Gruenewaldiidae Cooper 1991 [synonym]
Fm. †Prosogyrotrigoniidae Kobayashi 1954
+
Subfm. †Praegoniinae Fleming 1962
+
G. †Agonisca Fleming 1963
+
Agonisca corbiensis Fleming 1963
G. †Praegonia Fleming 1962
+
Praegonia coombsi Fleming 1962
Subfm. †Prosogyrotrigoniinae Kobayashi 1954
+
G. †Prosogyrotrigonia Krumbeck 1924
+
Prosogyrotrigonia tenuis Pérez et al. 2008
Fm. †Scaphellinidae Newell and Ciriacks 1962
+
G. †Scaphellina Newell and Ciriacks 1962
+
Scaphellina concinna Branson 1930
+
Invalid names: Scaphellina bradyi Newell and Ciriacks 1962 [synonym], Scaphellina phosphoriensis Branson 1930 [synonym]
Scaphellina praeobscurus Guskov 1984
Fm. †Schizodidae Newell and Boyd 1975
+
Subfm. †Eoastartinae Newell and Boyd 1975
+
G. †Eoastarte Ciriacks 1963
+
Eoastarte primaeva Waagen 1881
Eoastarte subcircularis Ciriacks 1963
G. †Kaibabella Chronic 1952
+
Subg. †Kaibabella (Flattopia) Waterhouse 1987
Kaibabella basilica Newell and Boyd 1975
Kaibabella boydi Waterhouse 1983
Kaibabella curvilenata Chronic 1952
Kaibabella ovata Waterhouse 1983
G. †Heteroschizodus Newell and Boyd 1975
+
Heteroschizodus macomoides Newell and Boyd 1975
G. †Schizodus King 1844
+
Schizodus acuminatus Hoare et al. 1978
Schizodus affinis Herrick 1887
Schizodus alpinus Hall 1858
Schizodus altus Newell and Boyd 1975
Schizodus amplus Meek and Worthen 1870
+
Invalid names: Schizodus mooresi Miller 1889 [synonym]
Schizodus antiquus Hind 1898
Schizodus australis Runnegar 1969
Schizodus bifidus Ciriacks 1963
Schizodus canalis Branson 1930
Schizodus cardissa Waagen 1881
Schizodus chesterensis Meek and Worthen 1860
Schizodus compressus Waagen 1881
Schizodus compressus Rogers 1900
Schizodus crespinae Dickins 1957
Schizodus cuneatus Meek 1875
Schizodus curtiforme Walcott 1884
Schizodus curtus Meek and Worthen 1866
Schizodus cycloliratus Harrington 1955
Schizodus deparcus Walcott 1884
Schizodus depressus Worthen 1884
+
Invalid names: Schizodus abruptus Girty 1915 [objective synonym], Schizodus circularis Worthen 1884 [synonym]
Schizodus dianensis Guo 1985
Schizodus dubiiformis Waagen 1881
Schizodus ellioti Maxwell 1964
Schizodus elongatus Grabau 1931
Schizodus emarginatus Reed 1944
Schizodus ferrieri Girty 1910
Schizodus fitzroyensis Dickins 1963
Schizodus globosus Maxwell 1964
Schizodus guizhouensis Liu and Xu 1976
Schizodus japonicus Hayasaka 1925
Schizodus jiangbianensis Fang and Yin 1995
Schizodus jiangxiensis Li and Ding 1982
Schizodus kennedyensis Dickins 1956
Schizodus lopingensis Kayser 1883
Schizodus magnus Worthen 1884
Schizodus meekanus Girty 1900
Schizodus minutus Maxwell 1964
Schizodus negrii Bittner 1892
Schizodus obscurus Sowerby 1821
+
Invalid names: Axinus parvus Brown 1839 [synonym], Axinus pucillus Brown 1839 [synonym], Axinus undatus Brown 1839 [synonym], Lucina minima Brown 1839 [synonym]
Schizodus ovatus Meek and Hayden 1858
Schizodus parvulus Cooper 1953
Schizodus pinguis Waagen 1881
Schizodus pintoensis Walcott 1884
Schizodus rhynchophorus Ponomarenko 2011
Schizodus rossicus de Verneuil 1845
Schizodus rotundatus Brown 1839
Schizodus sandimanensis Dickins 1963
Schizodus schlotheimi Geinitz 1841
Schizodus securus Shumard 1859
Schizodus sinensis Liu 1976
Schizodus subcircularis Herrick 1887
Schizodus subobscurus Licharew 1933
Schizodus subovatus Ciriacks 1963
Schizodus subquadratus Grabau 1931
Schizodus supaiensis Winters 1963
Schizodus texanus Clifton 1942
Schizodus tibeticus Liu and Cui 1983
Schizodus trigonalis Sayre 1930
Schizodus truncatus King 1844
+
Invalid names: Schizodus dubius Schauroth 1856 [synonym]
Schizodus tschernjaki Muromtseva 1974
Schizodus ulrichi Worthen 1890
Schizodus wheeleri Swallow 1863
Schizodus wyomingensis Newell and Boyd 1975
Invalid names: Protoschizodus de Koninck 1885 [synonym], Schizodus jiaozishanensis Xu 1980 [nomen nudum], Schizodus qinglongensis Xu 1980 [nomen nudum]
G. †Silurozodus Liljedahl 1992
Fm. †Sinodorinae Pojeta and Zhang 1984
+
G. †Sinodora Pojeta and Zhang 1984
Invalid names: Schizodinae Newell and Boyd 1975 [empty]
Fm. Trigoniidae Lamarck 1819
+
G. †Asiatotrigonia Cox 1952
+
Asiatotrigonia sultanuisi Archangelski 1916
G. †Buchotrigonia Dietrich 1938
+
+
+
Invalid names: Trigonia syriaca Fraas 1878 [replaced]
Buchotrigonia abrupta von Buch 1838
+
Invalid names: Trigonia humboldtii von Buch 1839 [synonym]
Buchotrigonia cazadoriana Wilckens 1907
Buchotrigonia collombi Vilanova 1863
Buchotrigonia deshayesi Vilanova 1863
Buchotrigonia flexicostata Fritzsche 1924
Buchotrigonia inca Fritzsche 1924
Buchotrigonia pizcuetana Vilanova 1863
Buchotrigonia scheibei Dietrich 1938
G. †Eotrigonia Cossmann 1912
+
Eotrigonia semiundulata Jenkins 1865
+
Trigonia semiundulata lutosa Pritchard 1903
Invalid names: Trigonia subundulata Jenkins 1865 [synonym]
Eotrigonia tubulifera Tate 1885
G. †Geratrigonia Kobayashi 1954
+
Geratrigonia hosourensis Yokoyama 1904
Geratrigonia kurumensis Kobayashi 1954
G. †Heterotrigonia Cox 1952
+
Heterotrigonia sawatai Yehara 1900
G. †Kyushutrigonia Tamura and Nishimura 1994
+
Kyushutrigonia hachibarensis Tamura and Nishimura 1994
G. †Latitrigonia Kobayashi 1957
G. †Linotrigonia van Hoepen 1929
+
+
Oistotrigonia antarctica Wilckens 1900
Oistotrigonia archiaciana d'Orbigny 1900
Oistotrigonia austronana Stilwell and Gallagher 2009
Oistotrigonia constantii d'Orbigny 1900
Oistotrigonia crenifera Stoliczka 1872
Oistotrigonia inornata d'Orbigny 1900
Oistotrigonia lamarckii Matheron 1900
Oistotrigonia ornata d'Orbigny 1843
Oistotrigonia parva Brüggen 1910
Oistotrigonia pulchra Kitchin 1903
Oistotrigonia pygoscelium Wilckens 1910
Oistotrigonia pyrrha d'Orbigny 1900
Oistotrigonia spinosa Parkinson 1811
Oistotrigonia subspinosa de Loriol 1900
Oistotrigonia tenuisulcata Dujardin 1805
Oistotrigonia upwarensis Lycett 1875
Oistotrigonia vicaryana Lycett 1875
Oistotrigonia weberi Archangelski 1900
Linotrigonia fittoni Deshayes 1842
Linotrigonia linifera van Hoepen 1929
Linotrigonia meyeri Lycett 1875
G. †Liotrigonia Cox 1952
+
Liotrigonia lingonensis Dumortier 1869
G. †Luxitrigonia Guo 1985
+
G. †Lyroschizodus Newell and Boyd 1975
+
Lyroschizodus djemelensis Boyd and Newell 1979
Lyroschizodus orbicularis Newell and Boyd 1975
Lyroschizodus praecox Waagen 1881
Lyroschizodus subelegans Waagen 1881
Lyroschizodus tobai Hayasaka 1925
G. †Maputrigonia Leanza 1985
G. †Megatrigonia van Hoepen 1929
+
Subg. †Megatrigonia (Apiotrigonia) Cox 1952
+
Subg. †Apiotrigonia (Apiotrigonia) Cox 1952
Apiotrigonia buchi Geinitz 1900
Apiotrigonia calderoni Cragin 1905
Apiotrigonia chivensis Archangelski 1916
Apiotrigonia disparilis d'Orbigny 1844
Apiotrigonia maudensis Whiteaves 1876
Apiotrigonia newcombei Packard 1921
Apiotrigonia pennata Sowerby 1819
Apiotrigonia progonos Paulcke 1903
Apiotrigonia robinaldina d'Orbigny 1844
Apiotrigonia subovalis Jimbo 1894
Apiotrigonia syrdariensis Archangelski 1900
Apiotrigonia turcmenensis Archangelski 1900
+
Invalid names: Trigonia packardi Anderson 1958 [synonym]
Subg. †Megatrigonia (Iotrigonia) Van Hoepen 1929
+
Iotrigonia consanguinea Philippi 1899
Iotrigonia crassitesta van Hoepen 1929
Iotrigonia dubia Kitchin 1903
Iotrigonia flexicostata Burwash 1913
Iotrigonia foveata Philippi 1899
Iotrigonia gamporrhyncha Philippi 1899
Iotrigonia glyptica Woods 1917
Iotrigonia haughtoni Rennie 1936
Iotrigonia leucothea Philippi 1899
Iotrigonia limatula Whitehouse 1946
Iotrigonia lorenti Dana 1849
Iotrigonia manflarum Philippi 1899
Iotrigonia ovallei Philippi 1899
Iotrigonia recurva Kitchin 1903
Iotrigonia rolli Piatnizky 1900
Iotrigonia vau Sharpe 1900
Iotrigonia vscripta Kitchin 1903
Megatrigonia arsinoe Philippi 1900
Megatrigonia discors Philippi 1900
Megatrigonia eximia Philippi 1899
Megatrigonia obesa van Hoepen 1929
Megatrigonia picunensis Weaver 1900
Megatrigonia pusilla Philippi 1899
Megatrigonia staffi Lange 1900
G. †Minetrigonia Kobayashi and Katayama 1938
+
Minetrigonia anadyrensis Kiparisova 1966
Minetrigonia bulunensis Kiparisova 1966
Minetrigonia hegiensis Saeki 1925
Minetrigonia pascoensis Steinmann 1930
Minetrigonia suttonensis Clapp and Shimer 1911
Subfm. †Minetrigoniinae Kobayashi 1954
+
G. †Maoritrigonia Fleming 1962
+
Maoritrigonia beringica Bychkov 1985
Maoritrigonia chekhovi Bychkov 1985
Maoritrigonia columbiana McLearn 1942
Maoritrigonia mollesensis Pérez and Reyes 1994
Maoritrigonia nuggetensis Trechmann 1917
Maoritrigonia otamitensis Trechmann 1917
Maoritrigonia sparsicostata Pérez and Reyes 1994
G. †Perugonia Kobayashi and Tamura 1968
+
Subg. †Perugonia (Albitrigonia) Prado-Velazco 1991
Perugonia lissoni Steinmann 1929
G. †Myophorigonia Cox 1952
+
Myophorigonia jaworskii Steinmann 1929
Myophorigonia kobayashii Tamura and McRoberts 1993
Myophorigonia parcinoda Lycett 1872
Myophorigonia paucicostata Jaworski 1922
Myophorigonia salasi de Cserna 1961
G. Neotrigonia Cossmann 1912
+
Neotrigonia bednalli Verco 1907
Neotrigonia gemma Iredale 1924
Neotrigonia lamarckii Gray 1838
Neotrigonia margaritacea Lamarck 1804
Neotrigonia pectinata Lamarck 1819
Neotrigonia strangei Adams 1854
Neotrigonia uniophora Gray 1847
Subfm. †Neuquenitrigoniinae Leanza 1993
+
G. †Neuquenitrigonia Leanza and Garate 1987
+
Neuquenitrigonia huenickeni Leanza and Garate 1985
Neuquenitrigonia plazaensis Pérez et al. 2008
G. †Nipponitrigonia Cox 1952
+
Nipponitrigonia kikuchiana Yokoyama 1891
Nipponitrigonia naumanni Yehara 1923
G. †Nototrigonia Cox 1952
+
Nototrigonia cinctuta Etheridge 1902
Subfm. †Nototrigoniinae Skwarko 1963
+
Invalid names: Austrotrigoniinae Skwarko 1968 [synonym]
G. †Opisthotrigonia Cox 1952
+
Opisthotrigonia retrorsa Kitchin 1903
G. †Pacitrigonia Marwick 1932
+
Pacitrigonia destefanii Feruglio 1900
Pacitrigonia ecplecta Wilckens 1910
Pacitrigonia hanetiana d'Orbigny 1842
Pacitrigonia patagonica Feruglio 1937
Pacitrigonia sobrali Leanza and Casadío 1991
Pacitrigonia sylvesteri Marwick 1932
G. †Prorotrigonia Cox 1952
+
Prorotrigonia seranensis Krumbeck 1923
Subfm. †Psilotrigoniinae Fleming 1987
+
G. †Psilotrigonia Cox 1952
+
Psilotrigonia beesleyana Lycett 1874
Psilotrigonia vegaensis Pérez et al. 2008
Psilotrigonia zealandica Fleming 1987
G. †Quadratotrigonia Dietrich 1933
+
Quadratotrigonia nodosa Sowerby 1830
G. †Quoiecchia Crickmay 1930
+
Quoiecchia aliciae Crickmay 1930
G. †Rutitrigonia van Hoepen 1929
+
Rutitrigonia affinis Sowerby 1818
Rutitrigonia agrioensis Weaver 1931
Rutitrigonia bornhardti Müller 1900
Rutitrigonia coquandiana d'Orbigny 1844
Rutitrigonia dietrichi Lange 1914
Rutitrigonia excentrica Parkinson 1811
Rutitrigonia jacksonensis Packard 1921
Rutitrigonia janenschi Lange 1914
Rutitrigonia laeviuscula Lycett 1875
Rutitrigonia longa Agassiz 1840
Rutitrigonia mesembria Tenison-Woods 1900
Rutitrigonia neumayri Yehara 1923
Rutitrigonia peregrina van Hoepen 1929
Rutitrigonia pongolensis Rennie 1936
Rutitrigonia pseudoindica Archangelski 1916
Rutitrigonia regina Wilckens 1911
Rutitrigonia schwarzi Müller 1900
Rutitrigonia semiculta Forbes 1846
G. †Sichuantrigonia Gou 1993
+
G. †Sphenotrigonia Rennie 1936
+
Subfm. Trigoniinae Lamarck 1819
+
G. †Guineana Skwarko 1967
+
Guineana alta Gabb 1864
Guineana emmerichii Winkler 1859
Guineana jimiensis Skwarko 1967
Guineana micrasiatica Bittner 1891
Guineana postera Quenstedt 1857
G. †Trigonia Bruguière 1789
+
Subg. †Trigonia (Clavitrigonia) Leanza 1942
Subg. †Trigonia (Heslingtonia) Fleming 1987
Subg. †Trigonia (Indotrigonia) Dietrich 1933
Subg. †Trigonia (Pleurotrigonia) van Hoepen 1929
+
Invalid names: Trigonia (Modestella) Hautmann 2001 [objective synonym], Trigonia (Modesticoncha) Hautmann 2009 [objective synonym]
Subg. †Trigonia (Prosogyrotrigonia) Krumbeck 1924
Subg. †Trigonia (Protrigonia) Guo 1985
Subg. †Trigonia (Trigonia) Bruguiere 1789
Trigonia aequicostata Gabb 1869
Trigonia analoga Douvillé 1916
Trigonia antiqua d'Orbigny 1842
Trigonia azzarolae Stoppani 1865
Trigonia bowersiana Anderson 1958
Trigonia castani Henry 1876
Trigonia castrovillensis Stephenson 1941
Trigonia charlottensis Packard 1921
Trigonia churchi Anderson 1958
Trigonia columbiana Packard 1921
Trigonia coqueiroensis Maury 1936
Trigonia cragini Stoyanow 1949
Trigonia depauperata Douvillé 1916
Trigonia deschutesensis Packard 1921
Trigonia devexa Eichwald 1871
Trigonia doroschini Eichwald 1871
Trigonia eufaulensis gabbi Stephenson 1941
Trigonia eufaulensis moorei Stephenson 1941
Trigonia evansana Meek 1864
Trigonia gibboniana Lea 1840
Trigonia guildi Stoyanow 1949
Trigonia hemisphaerica Lycett 1877
Trigonia imbricata Sowerby 1826
Trigonia inezana Packard 1921
Trigonia intersitans Tate 1896
+
Invalid names: Trigonia tatei Pritchard 1895 [replaced]
Trigonia kayana Anderson 1938
Trigonia kefersteini Münster 1828
Trigonia kitchini Stoyanow 1949
Trigonia maastrichtiana Briart 1888
Trigonia maloneana Stoyanow 1949
Trigonia marginata Damon 1860
Trigonia mearnsi Stoyanow 1949
Trigonia melhasei Anderson 1958
Trigonia montanaensis Meek 1873
Trigonia mooreana Gabb 1861
Trigonia neuquensis Burckhardt 1903
Trigonia obliqua Hyatt 1892
Trigonia oregona Packard 1921
Trigonia orientalis Douvillé 1916
Trigonia oviedensis Lycett 1881
Trigonia pandicosta Meek 1864
Trigonia papuana Glaessner 1958
Trigonia picteti Coquand 1865
Trigonia plana Repin 2013
Trigonia plumasensis Hyatt 1892
Trigonia pseudocaudata Hector 1886
Trigonia pseudocrenulata Notling 1884
Trigonia pullus Sowerby 1826
Trigonia rebouli Henry 1876
Trigonia reesidei Stoyanow 1949
Trigonia resoluta Stoyanow 1949
Trigonia reticulata Agassiz 1841
Trigonia saavedra Stoyanow 1949
Trigonia somaliensis Stefanini 1939
Trigonia stantoni Stephenson 1941
Trigonia stolleyi Hill 1893
Trigonia suborbicularis Forbes 1846
Trigonia sulcata Hector 1874
Trigonia tabacoensis Barthel 1958
Trigonia taffi Cragin 1893
Trigonia thierachensis Fischer 1969
Trigonia undulatocostata Blanckenhorn 1890
Trigonia weaveri Stoyanow 1949
Trigonia whateleyae Buch 1844
Trigonia windhauseniana Wilckens 1921
Invalid names: Lyrodontidae Bronn 1862 [synonym], Pleurotrigoniinae van Hoepen 1929 [empty]
Superfm. †Trigonioidoidea Cox 1952
+
Fm. †Jilinoconchidae Ma 1989
+
G. †Jilinoconcha Ma 1989
+
Jilinoconcha songhuaensis Gu and Yu 1976
Fm. †Nakamuranaiadidae Guo 1981
+
G. †Cyotrigonioides Guo 1981
+
G. †Enotrigonioides Guo 1987
G. †Nakamuranaia Suzuki 1943
Fm. †Nippononaiidae Chen 1987
+
G. †Sinonaia Guo 1981
+
Invalid names: Nippononaiinae Chen 1987 [empty], Sinonaiinae Chen 1987 [empty]
Fm. Pseudohyriidae Kobajashi 1968
+
G. †Gobiola Martinson 1975
+
G. †Pseudohyria MacNeil 1936
+
G. †Weichangella Yu and Yao 1980
+
Weichangella caelata Yu and Yao 1980
Fm. †Sainschandiidae Kolesnikov 1977
+
Fm. †Trigonioididae Cox 1952
+
G. †Americunio Guo 1986
+
Americunio asinaria Reeside 1957
G. †Eotrigonioides Ma 1989
+
Eotrigonioides antiqua Gu and Ma 1976
G. †Hoffetrigonia Suzuki 1940
G. †Linotrigonioides Guo 1987
+
Subfm. †Martinsonellinae Hong 1965
+
G. †Martinsonella Hong 1965
G. †Multiplicanaia Yu and Zhang 1984
+
Multiplicanaia tujingziensis Yu and Zhang 1984
Subfm. †Peregrinoconchinae Gu 1976
+
G. †Peregrinoconcha Chen and Lan 1976
+
Peregrinoconcha yunnanensis Chen and Lan 1976
G. †Pseudohyrioides Ma 1984
+
G. †Songhuanaia Gu 1976
+
G. †Yeniella Modell 1964
Invalid names: Danlengiconchinae Sha 1993 [empty], Trigonioidinae Cox 1952 [empty]
Invalid names: Americunioninae Guo 1986 [empty], Plicatounionidae Chen 1987 [empty]
Superfm. †Trigonodoidea Modell 1942
+
Fm. †Desertellidae Dechauseaux 1946
+
G. †Desertella Haug 1905
Fm. †Trigonodidae Modell 1942
+
G. †Janaija Truschelev 1984
+
Janaija magnoplicata Kurushin 1987
Janaija nikolaevi Kurushin 1987
Janaija praelonga Kiparisova 1937
Janaija visibilis Kurushin 1987
G. †Trigonodus Alberti 1864
+
Trigonodus abdominalis Jelen 1989
Trigonodus bittneri Waagen 1907
Trigonodus brevidens Waagen 1907
Trigonodus carniolicus Bittner 1907
Trigonodus costatus Wöhrmann 1892
Trigonodus dieneri Waagen 1907
Trigonodus intermedius Waagen 1907
Trigonodus marmolatae Salomon 1895
Trigonodus minor Newberry and Worthen 1866
Trigonodus orientalis Bittner 1899
Trigonodus praeco Philippi 1898
Trigonodus problematicus Klipstein 1843
Trigonodus productus Whiteaves 1889
Trigonodus rablensis Gredler 1862
Trigonodus ramovsi Jelen 1989
Trigonodus sandbergeri von Alberti 1864
Trigonodus serianus Parona 1889
Trigonodus xiabolangensis Yin and Grant-Mackie 2005
Invalid names: Beichuanioidea Liu and Gu 1988 [empty], Lyrodesmatacea Ulrich 1894 [empty], Megatrigonioidea van Hoepen 1929 [empty], Myophorellina Cooper 1991 [empty]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: aragonitec
Locomotion: facultatively mobileo
Life habit: infaunalo
Diet: suspension feedero
Vision: blindc
Created: 2004-02-28 12:34:20
Modified: 2004-02-28 14:34:20
Source: o = order, c = class
Reference: Aberhan et al. 2004

Age range

Maximum range based only on fossils: base of the Floian to the top of the Middle Pleistocene or 477.70000 to 0.12600 Ma
Minimum age of oldest fossil (stem group age): 470.0 Ma

Collections (4480 total)

Oldest occurrences

Time interval Ma Country or state Original ID and collection number
Arenig478.6 - 466.0Australia (Queensland) Trigonodus sp. (157069 157073)
Floian477.7 - 470.0China (Yunnan) Baidiostraca aberrans (200939)
Katian453.0 - 445.2Sweden (Dalarna) Myophoria ebbae (124939)
Wenlock433.4 - 427.4China (Jiangsu) Eoschizodus sp. (27751 27752)
Wenlock433.4 - 427.4USA (New York) Eoschizodus sp. (470)
Homerian - Gorstian430.5 - 425.6USA (Alaska) Schizodus sp. A, Schizodus sp. B (153969)
Lochkovian419.2 - 410.8Australia (Victoria) Eoschizodus sp. (7196 8481)
Lochkovian419.2 - 410.8USA (Florida) Eoschizodus sp. (75630)
Lochkovian419.2 - 410.8China (Guangxi) Schizodus cuneus (3998) Schizodus cuneus, Schizodus appressus (4002) Schizodus peregrins (4003)
Early/Lower Devonian419.2 - 393.3Australia (Victoria) Eoschizodus sp. (8345 8351 8359)
Pragian410.8 - 407.6China (Guangxi) Eoschizodus sp. (25814)
Pragian410.8 - 407.6Australia (Victoria) Dolabra unilateralis (75704 75713 75714) Eoschizodus sp. (8498)
Pragian - Emsian410.8 - 393.3Turkey (Istanbul) Eoschizodus sp., Toechomya sp., Hefteria sp. (32470)
Early/Lower Emsian409.1 - 402.5Australia (Victoria) Schizodus oweni (35555)
Early/Lower Emsian409.1 - 402.5Germany Pholadella peregrina (232221)
Early/Lower Emsian409.1 - 402.5China (Heilongjiang) Toechomya sp. (25844)
Early/Lower Emsian409.1 - 402.5China (Guangxi) Schizodus sp. (3983)
Emsian407.6 - 393.3New Zealand Eoschizodus sp. (40525 40529)
Emsian407.6 - 393.3China (Sichuan) Yangella cuneatiformis (200825)
Emsian407.6 - 393.3Canada (Quebec) Schizodus sp. (608)