|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Polyplacophora - Preacanthochitonidae
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.
|R. D. Hoare and J. Pojeta 2006||Plates thick, smooth; tail plate elongate, subrectangular, with weak jugum ending in a mucro just anterior to posterior margin, posterior margin arched dorsally; intermediate plates subtriangular with moderate to deep anterior sinus; head plate subcircular, coming to a point posteriorly.|