|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||Age range and collections|
Bivalvia - Trigoniida - Megatrigoniidae
It was reranked as Megatrigonia (Apiotrigonia) by Jones (1960).
It was assigned to Megatrigonia by Jones (1960); to Trigoniidae by Hayami (1975); to Apiotrigoniinae by Tashiro and Kozai (1982); and to Trigonioida by Sepkoski (2002).
If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.