NOMEN: Systellognatha Enderlein 1909 [G. Enderlein. Klassification der Plecopteren Sowie Diagnosen neuer Gattungen und Arten. // Zoologischer Anzeiger, 1909, 34 (13/14): 385–419] BHL
ORIGINAL LISTED MEMBERSHIP (Enderlein 1909): Pteronarcyidae ("Pteronarcidae") + Perlidae
TYPIFIED NAME IN BASIC FORMAT: Perla/fg (sine Nemoura, Eusthenia; incl. Pteronarcys, Peltoperla)
TYPIFIED NAMES IN USE:
MODERN
STATUS: 
the valid, the
oldest name of a generally accepted, holophyletic taxon.
COMMENT. Initially the suborder Systellognatha included the genus Diamphipnoa, which was erroneously placed in the family Pteronarcidae (Enderlein 1909), but subsequently placed in Antarctoplecoptera