New archaeorthopteran insects from the Pennsylvanian of Piesberg reveal unexpected mosaic of morphological traits and colouration pattern of the tegmina

New archaeorthopterans Contracladus impar gen. nov. et sp. nov. (uncertain assignement), Paraspiculum brauckmannii gen. nov. et sp. nov. (Caloneurodea) and Piesbergopterum punctatum gen. nov. et sp...