A new burmaeshnid dragonfly from the mid-Cretaceous Burmese amber: Elucidating wing base structure of true Odonata

A new fossil burmaeshnid, Proaeschna zhangi gen. et sp. nov., is described from the mid-Cretaceous Burmese amber. Its well-preserved wing base structure allows us to illustrate the morphological details of wing base in the fossil Odonata for the first time. The proximal costal plate in the new species consists of the anterior and posterior parts which are fused together with a suture. The anterior proximal costal plate in P. zhangi and extant...