†Gynacantha polydore Heer 1849
Alternative combination: Aeschna polydore
Full reference: O. Heer. 1849. Die Insektenfauna der Tertiärgebilde von Oeningen und von Radoboj in Croatien. Zweiter Theil: Henschrecken, Florfliegen, Aderflügler, Schmetterlinge und Fliegen 1-264
Belongs to Gynacantha according to A. Nel et al. 1994
Sister taxa: none
Type specimen: Coll Karlsruh Inv. 1265, a wing (vague thorax fragments, abdomen added with paint). Its type locality is Oeningen (Carlsruhe collection), which is in a Sarmatian lacustrine - large limestone in the Upper Freshwater-Molasse Formation of Germany.
Average measurements (in mm): forewing length 38.1, hindwing length 37.9