Traits taxon details
original description
(of Trigonia constantii A. d'Orbigny, 1844 †) Orbigny, A. D. d'. (1844-1848). <i>Paléontologie française. Description zoologique et géologique de tous les animaux Mollusques et Rayonnés fossiles de France. Terrains crétacés</i>. Volume 3. Pelecypoda. 807 pp, Victor Masson, Paris (1-288 [1844]; 289-480 [1845]; 481-512 [1846]; 513-688 [1847]; 689-807 [1848]). , available online at http://www.biodiversitylibrary.org/item/73207 page(s): 144, pl. 291, figs 4-6 [details]
basis of record
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 
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