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Trigonia

Bivalvia - Trigoniida - Trigoniidae

Taxonomy
Trigonia was named by Bruguière (1789) [Sepkoski's age data: Tr Anis K Maes Sepkoski's reference number: 914]. It is not extant. Its type is Venus sulcata.

It was assigned to Trigoninae by Packard (1921); to Trigonioida by Sepkoski (2002); to Trigoniinae by Pérez et al. (2008); and to Trigoniidae by Meek (1864), Cox (1952), Vokes (1980), Bouchet et al. (2010), Ros-Franch et al. (2014).

Synonymy list
YearName and author
1789Trigonia Bruguière
1864Trigonia Meek p. 48
1921Trigonia Packard p. 9
1952Trigonia Cox
1980Trigonia Vokes p. 100
2002Trigonia Sepkoski
2008Trigonia Pérez et al. p. 59
2010Trigonia Bouchet et al.
2014Trigonia Ros-Franch et al.

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
superphylumLophotrochozoa
phylumMollusca
classBivalvia
Eubivalvia
subclassAutobranchia(Groblen 1894)
RankNameAuthor
infraclassHeteroconchia(Gray 1854)
UniomorphiGray 1854
UnioniGray 1854
UnionataGray 1854
orderTrigoniida(Dall 1889)
superfamilyTrigonioidea(Lamarck 1819)
familyTrigoniidaeLamarck 1819
subfamilyTrigoniinaeLamarck 1819
genusTrigoniaBruguière 1789

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.

G. †Trigonia Bruguière 1789
show all | hide all
Subg. †Trigonia (Clavitrigonia) Leanza 1942
Subg. †Trigonia (Heslingtonia) Fleming 1987
Subg. †Trigonia (Indotrigonia) Dietrich 1933
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Invalid names: Trigonia crassa Kitchin 1900 [replaced]
Subg. †Trigonia (Pleurotrigonia) van Hoepen 1929
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Invalid names: Trigonia (Modestella) Hautmann 2001 [objective synonym], Trigonia (Modesticoncha) Hautmann 2009 [objective synonym]
Subg. †Trigonia (Prosogyrotrigonia) Krumbeck 1924
Subg. †Trigonia (Trigonia) Bruguiere 1789
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Trigonia (Trigonia) gaytani Klipstein 1843
Trigonia (Trigonia) heva Dollfus 1863
Trigonia aequicostata Gabb 1869
Trigonia analoga Douvillé 1916
Trigonia angulicosta Gabb 1876
Trigonia antiqua d'Orbigny 1842
Trigonia azzarolae Stoppani 1865
Trigonia bowersiana Anderson 1958
Trigonia carinata Agassiz 1840
Trigonia castani Henry 1876
Trigonia castrovillensis Stephenson 1941
Trigonia charlottensis Packard 1921
Trigonia columbiana Packard 1921
Trigonia coqueiroensis Maury 1936
Trigonia cragini Stoyanow 1949
Trigonia depauperata Douvillé 1916
Trigonia devexa Eichwald 1871
Trigonia doroschini Eichwald 1871
Trigonia eufaulensis gabbi Stephenson 1941
Trigonia eufaulensis moorei Stephenson 1941
Trigonia gibboniana Lea 1840
Trigonia hemisphaerica Lycett 1877
Trigonia imbricata Sowerby 1826
Trigonia intersitans Tate 1896
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Invalid names: Trigonia tatei Pritchard 1895 [replaced]
Trigonia kayana Anderson 1938
Trigonia kefersteini Münster 1828
Trigonia kitchini Stoyanow 1949
Trigonia literata Young and Bird 1828
Trigonia maastrichtiana Briart 1888
Trigonia maloneana Stoyanow 1949
Trigonia marginata Damon 1860
Trigonia melhasei Anderson 1958
Trigonia montanaensis Meek 1873
Trigonia mooreana Gabb 1861
Trigonia nodulosa Lamarck 1801
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 reticulata Agassiz 1841
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 thierachensis Fischer 1969
Trigonia thoracica Morton 1834
Trigonia undulata Fromherz 1838
Trigonia undulatocostata Blanckenhorn 1890
Trigonia windhauseniana Wilckens 1921
Diagnosis
No diagnoses are available
Measurements
partNmeanminimummaximummedians.d.
shell height329.225.036.827.06.34
valve height1026.418.036.027.06.47

Composition: aragonitef
Environment: marinef
Locomotion: fast-movingf
Life habit: shallow infaunalf
Diet: suspension feederf
Vision: blindf
Created: 2025-05-16 13:05:25
Modified: 2025-05-16 13:05:25
Source: f = family
References: Aberhan et al. 2004, Ros-Franch et al. 2014

Age range: base of the Asselian to the top of the Danian or 298.90000 to 61.66000 Ma

Collections (845 total)

Oldest occurrences

Time interval Ma Country or state Original ID and collection number
Asselian298.9 - 293.52Bolivia T. antiqua (133181)
Anisian246.7 - 241.464Chile (Huasco) T. tabacoensis (223361)
Anisian246.7 - 241.464Chile (Atacama) T. tabacoensis (200772)
Julian237.0 - 233.6Italy T. gaytani (144634)
Carnian237.0 - 227.3Mexico (Sonora) T. sp. (200775)
Carnian237.0 - 227.3Japan (Kumamoto) Frenguelliella tanourensis (40556)
Carnian - Norian237.0 - 205.7China (Xizang) T. sp. (85521)
Lacian227.3 - 215.38USA (Alaska) T. sp. (112253)
Lacian - Alaunian227.3 - 211.18Russian Federation T. nemtinovi (136158 136161)
Norian227.3 - 205.7China (Qinghai) T. qiaotouensis (200769)

Youngest occurrences

Time interval Ma Country or state PBDB collection number
Maastrichtian72.2 - 66.0Argentina (Mendoza) Pterotrigonia windhauseniana (106079 236020 236365 236370)
Maastrichtian72.2 - 66.0Argentina (Chubut) Pterotrigonia windhauseniana (74105 74106 74113 74114 74115 74116 74118 74119 74122 74126 74307 74319 231700 231701 231704 231707 240148) Rinetrigonia windhauseniana (1357)
Maastrichtian72.2 - 66.0Argentina (Santa Cruz) Rinetrigonia windhauseniana (1371)
Maastrichtian72.2 - 66.0USA (Alabama) Pterotrigonia thoracica (4257 4258) Scabrotrigonia thoracica (1306 1307 1308)
Maastrichtian72.2 - 66.0Argentina (Neuquén) Pterotrigonia windhauseniana (66649 74019 74020 74021 74022 74027 74061 74067 74070 74073 74074 74075 74087 74089)
Maastrichtian72.2 - 66.0New Zealand Pterotrigonia pseudocaudata (1341)
Maastrichtian72.2 - 66.0USA (Arkansas) Scabrotrigonia thoracica (1302)
Maastrichtian72.2 - 66.0USA (New Jersey) T. mortoni (26818)
Maastrichtian - Danian72.2 - 61.66Argentina (Chubut) T. windhauseniana (240170)
Paleocene66.0 - 56.0Argentina T. sp. (99258)