NOMEN: †Protanisoptera Carpenter 1931 (II) [F.M. Carpenter. The Lower Permian insects of Kansas. Pt. 2. The orders Palaeodictyoptera, Protodonata, and Odonata. Amer. J. Sci., 1931, Ser. 5, 21 (122): 97-139]

ORIGINAL LISTED MEMBERSHIP (Carpenter 1931): †Ditaxineuridae 

JUNIOR CIRCUMSCRIPTIONAL SYNONYM:

= †Permodonata Zalessky 1931 (non Martynov 1927)

TYPIFIED NAME IN BASIC FORMAT: †Ditaxineura/fg

TYPIFIED NAMES IN USE: Ditaxineuridae, Ditaxineurina, Ditaxineuromorpha

MODERN STATUS:  the valid, the oldest name of a widely accepted, extinct taxon.

COMMENT.

NOMEN: †Protanisoptera Martynov 1931 (III) [А.В. Мартынов. On some new remarkable Odonata from the Permian of Archangelsk District. Известия Академии Наук СССР по Отделению математических и естественных наук (ИМЕН), 1931, N1]

ORIGINAL LISTED MEMBERSHIP (Martynov 1931): †Permaeschnidae

OBJECTIVE SYNONYM:
= †Permanisoptera Martynov 1931 (VII)

TYPIFIED NAME IN BASIC FORMAT: †Permaeschna/fg

TYPIFIED NAMES IN USE: 

MODERN STATUS: Preoccupied name, substituted by Permanisoptera Martynov 1931. Permanisoptera  Martynov 1931 (= Protanisoptera Martynov 1931, nom. praeocc.) belongs to Protanisoptera Carpenter 1931 s.l.; it is regarded to be a ranking ordinal synonym of Protanisoptera Carpenter 1931 (Rohdendorf et al. 1962).