|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||Age range and collections|
Bivalvia - Pholadomyida - Megadesmidae
It was reranked as Pleurikodonta by Waterhouse (1988) and Sepkoski (2002).
It was assigned to Astartila by Runnegar (1965); to Astartilinae by Waterhouse (1988); and to Pholadomyoida 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.