NOMEN: Posteritorna Kluge & Studemann & Landolt & Gonser 1995: 105 [N.J. Kluge, D. Studemann, P. Landolt, T. Gonser T. A reclassification of Siphlonuroidea (Ephemeroptera). – Bull. Soc. Ent. Suisse, , 1995, 68: 103-132]
ORIGINAL LISTED MEMBERSHIP (Kluge
& Studemann & Landolt & Gonser 1995):
Baetiscoidea 
JUNIOR CIRCUMSCRIPTIONAL SYNONYM:
= Carapacea
McCafferty 1997: 94
TYPIFIED NAME IN BASIC FORMAT: Baetisca/f=Prosopistoma/g
TYPIFIED NAMES IN USE: Prosopistominae, Prosopistomatoidea, Baetiscoidea
MODERN
STATUS: 
the valid, the
oldest name of a generally accepted, holophyletic taxon.