Libellulidae

Petrulevicius, Julian F., Wappler, Torsten, Nel, Andre & Rust, Jes, 2011, The diversity of Odonata and their endophytic ovipositions from the Upper Oligocene Fossillagerstaette of Rott (Rhineland, Germany), ZooKeys 130, pp. 67-89 : 71

Libellulidae species A Fig. 7

Material examined.

GPIBo Ro-37a from the locality of Rott (Upper Oligocene, Sapropelite- and Diatomite-Layers): three fragmentary preserved wings; body and appendages missing.

Description.

Three wings articulated but wrinkled. Only antero-apical part of one wing is possible to be described. Nine postnodals preserved, not aligned with 10 postsubnodals. Pterostigma covering three cells. Nine posterostigmal veins.Pseudo-IR1 long born beneath posterior part of pterostigma and covering 11 cells. IR1 almost straight connected to pseudo-IR1. RP2 slightly curved. IR2 ending at more than three cells from RP2.Rspl almost straight but ending on IR2 distally, with two rows of cells between it and IR2.

Remarks.

The shape of Rspl ending on IR2 and those of IR1 and pseudo-IR1, together with the weak pterostigmal brace are typical of Libellulidae . The postnodals and postsubnodals not aligned together with the broad area between RP1 and RP2 suggest possible affinities with the Trameinae . Nevertheless, this fossil differs from Paleotramea cellulosa from the same outcrop in the presence of only two rows of cells between Rspl and IR2. Also the patterns of cells between RP1 and IR1 are different in the two fossils. Thus it corresponds to a different unnamed species of Libellulidae .