|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||Age range and collections|
Tergomya - Archinacellida - Metoptomatidae
It was reranked as Tryblidium (Metoptoma) by Cresswell (1893).
It was assigned to Tryblidium by Cresswell (1893); to Patellogastropoda by Sepkoski (2002); and to Metoptomatidae by Knight et al. (1960) and Bouchet et al. (2005).
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.