Oborella brauckmanni, Prokop & weiβ & Dechambre & Nel, 2012

Prokop, Jakub, weiβ, Klaus-Dieter, Dechambre, Roger-Paul & Nel, André, 2012, Early Permian insects from Saar-Nahe Basin of Odernheim town site, Rheinland-Pfalz in Germany (Insecta, Grylloblattida, Blattinopseida), Geodiversitas 34 (2), pp. 271-281 : 271-281

Oborella brauckmanni n. sp. ( Figs 3 ; 4 )

MATERIAL. — Holotype MNHN.F.A31044 (two forewings superimposed).

DIAGNOSIS. — Crossveins in forewing costal area simple, short and in one row; RP forked; MA simple; MP forked; CuA with two main branches, both simple.

ETYMOLOGY. — Named after Prof. Carsten Brauckmann, specialist on Palaeozoic insects.

TYPE LOCALITY. — Odernheim town, Saar –Nahe Basin, Rheinland-Pfalz, Germany.

TYPE STRATA. — Early Permian, Rotliegend, Meisenheim Formation, Odernheim Subformation, Odernheim lake horizon (L-O8 or M8 respectively), lacustrine black shales.

DESCRIPTION

Forewing with costal margin slightly convex and rounded apex; without visible pattern of colouration, maybe due to problem of preservation, also some crossveins hardly visible; length of preserved part of wing 7.0 mm, max. width 2.8 mm; ScP straight, apically deflected but reaching costal margin 3.1 mm from wing apex; area between costal margin and ScP rather broad in midwing with nine preserved simple cross-veins; R nearly straight, RA and RP separating at about 3.0 of wing length from base; simple RA nearly straight, and ending on anterior margin 0.8 mm from wing apex; RA and RP area irregular widest at about midwing; RP bifurcated in distal third of wing, ending with two branches just above wing apex; M divided into MA and MP about 2.2 mm basal of separation of RA and RP; MA simple, nearly straight, ending close to wing apex; area between RP and MA with cross-veins; MP reaching posterior wing margin with two branches; MP area rather narrow; CuA with two basal branches, both simple and straight; CuP and anal area not preserved.

DISCUSSION

This fossil looks very similar to Oborella germanica n. sp. from the same outcrop and level. The more accurate difference between O. brauckmanni n. sp. and the other species of Oborella is the anterior branch of CuA simple instead of being deeply forked. Other differences with O. germanica n. sp. are: fork of MP at the level of base of RP instead of being in a more distal position, and apex of ScP more distant from apex of RA than in O. germanica n. sp.

Clade BLATTINOPSEIDA Bolton, 1925

Figures

FIG. 3. — Oborella brauckmanni n. sp., drawing of forewing venation (holotype MNHN.F.A31044). Scale bar: 3 mm.

FIG. 4. — Oborella brauckmanni n. sp., photograph of forewing venation (holotype MNHN.F.A31044). Scale bar: 3 mm.