MolluscaBase name details
Trigonia deslongchampsii Munier-Chalmas, 1865 †
867700 (urn:lsid:marinespecies.org:taxname:867700)
unaccepted > superseded combination
Species
Trigonia louisi Strand, 1928 † · unaccepted > junior subjective synonym (unnecessary replacement name for...)
unnecessary replacement name for Trigonia quadrata Agassiz, 1840, non J. de C. Sowerby, 1836; already replaced by T. deslongchampsi Munier-Chalmas, 1865
Trigonia quadrata Agassiz, 1840 † · unaccepted > junior homonym (junior homonym of Trigonia...)
junior homonym of Trigonia quadrata J. de C. Sowerby, 1836; replaced by T. deslongchampsi Munier-Chalmas, 1865
marine, brackish, fresh, terrestrial
fossil only
Munier-Chalmas, E. (1865). Note sur quelques espèces nouvelles du genre <i>Trigonia</i>. <em>Bulletin de la Société Linnéenne de Normandie.</em> 9: 415-420, 1 plate., available online at https://www.biodiversitylibrary.org/page/33929372
page(s): 420 [details]
page(s): 420 [details]
Type locality contained in France
type locality contained in France [details]
Taxonomy Replacement name for Trigonia quadrata Agassiz, 1840, a primary junior homonym of Trigonia quadrata J. de C. Sowerby, 1836.
Taxonomy Replacement name for Trigonia quadrata Agassiz, 1840, a primary junior homonym of Trigonia quadrata J. de C. Sowerby, 1836.
Reversal of precedence (ICZN Art. 23.9) according to the principle of prevailing usage (ICZN Art. 23.9.1.), invoked by Cooper (2020), does only apply to the homonym, not to its replacement name.
Trigonia deslongchampsii Munier-Chalmas, 1865 is thus the type species of Neoquadratotrigonia M. R. Cooper, 2020, by typification of replaced name. [details]
Reversal of precedence (ICZN Art. 23.9) according to the principle of prevailing usage (ICZN Art. 23.9.1.), invoked by Cooper (2020), does only apply to the homonym, not to its replacement name.
Trigonia deslongchampsii Munier-Chalmas, 1865 is thus the type species of Neoquadratotrigonia M. R. Cooper, 2020, by typification of replaced name. [details]
MolluscaBase eds. (2025). MolluscaBase. Trigonia deslongchampsii Munier-Chalmas, 1865 †. Accessed at: https://www.molluscabase.org/aphia.php?p=taxdetails&id=867700 on 2025-09-12
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original description
Munier-Chalmas, E. (1865). Note sur quelques espèces nouvelles du genre <i>Trigonia</i>. <em>Bulletin de la Société Linnéenne de Normandie.</em> 9: 415-420, 1 plate., available online at https://www.biodiversitylibrary.org/page/33929372
page(s): 420 [details]
new combination reference Cooper, M. R. (2020). On the Quadratotrigoniinae (Trigoniida: Myophorelloidea), their palaeobiogeography, evolution and classification. <em>Durban Natural Science Museum Novitates.</em> 39, 1-48. [details] Available for editors
[request]
page(s): 420 [details]
new combination reference Cooper, M. R. (2020). On the Quadratotrigoniinae (Trigoniida: Myophorelloidea), their palaeobiogeography, evolution and classification. <em>Durban Natural Science Museum Novitates.</em> 39, 1-48. [details] Available for editors
[request]
Present Inaccurate Introduced: alien Containing type locality
From editor or global species database
Taxonomy Replacement name for Trigonia quadrata Agassiz, 1840, a primary junior homonym of Trigonia quadrata J. de C. Sowerby, 1836.Reversal of precedence (ICZN Art. 23.9) according to the principle of prevailing usage (ICZN Art. 23.9.1.), invoked by Cooper (2020), does only apply to the homonym, not to its replacement name.
Trigonia deslongchampsii Munier-Chalmas, 1865 is thus the type species of Neoquadratotrigonia M. R. Cooper, 2020, by typification of replaced name. [details]
