Ptychopariina is an extinct suborder of trilobites of the order Ptychopariida.

[1] Also known as the primitive Ptychopariida, they are a notably wide and varied taxon.

[2] Some of the representative genera include Elrathia, Densonella, Norwoodia, Tricrepicephalus, Conocoryphe, and Modocia.

[2] Specialization is common in the Ptychopariina, which has made it difficult for authors to develop a single type that can distinguish Ptychopariina from other clades.

This Ptychopariida-related article is a stub.