Parent taxon: Trigoniida according to P. Bouchet et al. 2010
Sister taxa: Andivaugonia, Antutitrigonia, Arabitrigonia, Beichuanioidea, Columbitrigonia, Dampietrigonia, Gobiella, Heslingtonia, Kupenga, Litotrigonia, Lyrodesmatacea, Macrotrigonia, Mediterraneotrigonia, Myophorellina, Myophorelloidea, Nakanotrigonia, Neuquenenitrigonia, Paranditrigonia, Procostaria, Pseudocardinioidea, Skwarkoella, Trigoniina, Trigonioidea, Trigonioidoidea, Trigonodoidea, Zaletrigonia, Zulutrigonia
Subtaxa: Pterotrigoniidae
Ecology: facultatively mobile infaunal suspension feeder
Distribution:
• Cretaceous of Angola (2 collections), Antarctica (8), Argentina (7), Australia (2), Azerbaijan (1), Chile (2), Colombia (1), France (2), Germany (1), India (1), Japan (8), Madagascar (1), Mexico (4), the Netherlands (1), New Zealand (11), Papua New Guinea (1), South Africa (1), Switzerland (1), Ukraine (5), the United Kingdom (2), United States (201: Alabama, Arizona, Arkansas, Delaware, Georgia, Kansas, Maryland, Mississippi, Missouri, New Jersey, New Mexico, North Carolina, South Carolina, Tennessee, Texas), Venezuela (6)
• Jurassic of Japan (1)
Total: 270 collections including 280 occurrences