|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||Age range and collections|
Bivalvia - Pterioida
It was reranked as Monotis (Pacimonotis) by Grant-Mackie and Silberling (1990) and Taylor and Guex (2002).
It was assigned to Monotis by Grant-Mackie and Silberling (1990) and Taylor and Guex (2002); and to Pterioida 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.