Elmopterum rotundum Bethoux & Beckemeyer, 2007
Elmopterum rotundum Béthoux and Beckemeyer 2007: 55, fig. 5 (holotype - positive and negative imprints of an incomplete individual; MCZ 7468 and MCZ 7469; deposited in the Museum Comparative Zoology, Cambridge, USA; not examined).
Horizon.
Leonardian Stage, Wellington Formation (the Lower Permian).
Locality.
Elmo locality, Kansas, USA.
Description.
Anterior margin of forewing weakly convex; SC reaching the apical one fifth of the wing; costal area as broad as intercubital one; RS distinctly separated from MA; MA simple or with two branches directed to the apex of wing; MP with three branches directed to the posterior margin of wing; CuA with two branches; cross-veins in almost all areas forming a double row of cells.
Measurements.
Length of forewing about 18 mm.