Traits taxon details
original description
(of Trigonia gibboniana I. Lea, 1840 †) Lea I. (1840). Notice on the Oolitic formation in North America, with descriptions of some of its organic remains. <em>Proceedings of the American Philosophical Society.</em> 1(12): 225-227., available online at https://www.biodiversitylibrary.org/page/34512944 page(s): 226 [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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