original description
Hoffet, J.-H. (1937). Les lamellibranches saumatres du Sénonien de Muong Phalane (Bas-Laos). <em>Bulletin du Service géologique de l'Indochine.</em> 24(1): 4-25.
page(s): 11-12, pl. 1, figs 1-7 [details] Available for editors [request]
original description
(of Trigonioides trigonus Hoffet, 1937 †) Hoffet, J.-H. (1937). Les lamellibranches saumatres du Sénonien de Muong Phalane (Bas-Laos). <em>Bulletin du Service géologique de l'Indochine.</em> 24(1): 4-25.
page(s): 13, pl. 2, figs 6-9 [details] Available for editors [request]
original description
(of Trigonioides laotiae Hoffet, 1937 †) Hoffet, J.-H. (1937). Les lamellibranches saumatres du Sénonien de Muong Phalane (Bas-Laos). <em>Bulletin du Service géologique de l'Indochine.</em> 24(1): 4-25.
page(s): 12-13, pl. 2, figs 1-5 [details] Available for editors [request]
From editor or global species database
Taxonomic remark Sha (2007) considered the three species Trigonioides kobayashi, T. laotiae and T. trigonus, all described by Hoffet (1937), as conspecific, since they "continuously vary in outline, and sometimes occur in the same formation and site." [details]