|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||Age range and collections|
Polyplacophora - Mattheviidae
It was assigned to Robustidae by Stinchcomb and Darrough (1995); to Hemithecellitina by Sepkoski (2002); to Septemchitonidae by Vendrasco and Runnegar (2004); and to Mattheviidae by Pojeta et al. (2010).
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.