Bivalvia - Trigoniida - Megatrigonioidae
Alternative spellings: Scabrotrigonia, Trigonia (Scabrotrigonia)
Parent taxon: Pterotrigonia according to S. Mendir et al. 2021
See also Bouchet et al. 2010, Cox 1952, Dartevelle and Freneix 1957, Sepkoski 2002, Tashiro 1988, Tashiro and Kozai 1982 and Vokes 1980
Sister taxa: Pterotrigonia (Acanthotrigonia), Pterotrigonia (Pterotrigonia), Pterotrigonia (Ptilotrigonia), Pterotrigonia (Rinetrigonia), Pterotrigonia borgesi, Pterotrigonia cristata, Pterotrigonia ethra, Pterotrigonia evansana, Pterotrigonia klamathonia, Pterotrigonia oregana, Pterotrigonia vaelsiensis, Rinetrigonia ventricosa, Pisotrigonia salebrosa
Subtaxa: Pterotrigonia (Scabrotrigonia) pustulosa Pterotrigonia (Scabrotrigonia) scabra Scabrotrigonia kobayashii
Type: Trigonia scabra
Distribution:
• Cretaceous of Algeria (3 collections), Argentina (1), Austria (1), Colombia (1), Egypt (25), Germany (1), Italy (1), Japan (14), Libya (1), Madagascar (1), Mexico (1), Mozambique (2), North Atlantic (1), Oman (4), Peru (9), Serbia (1), Spain (2), the United Arab Emirates (3), United States (121: Alabama, Arkansas, Delaware, Georgia, Maryland, Mississippi, Missouri, New Jersey, North Carolina, South Carolina, Tennessee, Texas)
Total: 193 collections including 220 occurrences