Paeckelmanelloidea Ivanova, 1972

Poletaev, Vladyslav, 2024, New and revised taxa of Carboniferous spiriferides (Brachiopoda, Spiriferida) from the Donets Basin (Ukraine) and South Urals (Russia), European Journal of Taxonomy 968, pp. 132-155 : 143

Superfamily Paeckelmanelloidea Ivanova, 1972

Diagnosis (emended)

Moderately to strongly transverse shell with maximum of width at hinge line; flanks usually with simple ribs, rarely smooth; stratigraphically younger forms sometimes with bifurcations; fold and sulcus smooth or with median rib in sulcus and on fold, more rarely multicostate or with pair of opposed plica on both valves; ventral interarea usually moderately to very high, often catacline to procline or weakly apsacline; hinge line denticulate; microornament usually consisting of capillae and anteriorly free growth lamellae; dental adminicula usually present; vascular markings simple, radial; crural plates and dorsal adminicula lacking; ctenophoridium present.