Bivalvia - Trigoniida - Trigoniidae
Full reference: H. A. Leanza. 1993. Jurassic and Cretaceous trigoniid bivalves from west-central Argentina. Bulletins of American Paleontology 105(343):1-95
Parent taxon: Trigoniidae according to H. A. Leanza 1993
Sister taxa: Acanomyphoria, Actinotrigonia, Asiatotrigonia, Buchotrigonia, Climacotrigonia, Eotrigonia, Geratrigonia, Heterotrigonia, Ibotrigonia, Korobkovitrigonia, Kyushutrigonia, Latitrigonia, Linotrigonia, Liotrigonia, Luxitrigonia, Lyroschizodus, Maputrigonia, Megatrigonia, Mesotrigonia, Microtrigonia, Minetrigonia, Minetrigoniinae, Myophorigonia, Neotrigonia, Neuquenitrigoniinae, Nipponitrigonia, Nototrigonia, Nototrigoniinae, Opisthotrigonia, Pacitrigonia, Pleurotrigoniinae, Prorotrigonia, Psilotrigoniinae, Quadratotrigonia, Quoiecchia, Rutitrigonia, Sichuantrigonia, Sphenotrigonia, Trigoniinae, Turbitrigonia, Lyrodon
Subtaxa: Lambertrigonia
Ecology: fast-moving shallow infaunal suspension feeder
Distribution: found only at Tordillo (Jurassic of Argentina)