The Enantiornithes, also known as enantiornithines or enantiornitheans in literature, are a group of extinct avialans. They were the most abundant and diverse avialan group known from the Mesozoic era
A life restoration of Iberomesornis, a species of early Enantiornithes
Fossil skeleton of Rapaxavis pani (a longipterygid) with a preserved pygostyle
Life reconstruction of enantiornithine birds feeding (left Longipteryx, centre Bohaiornis and right Pengornis)
Fossilized eggs of Gobipteryx minuta, Dinosaurium (Prague)
Cruralispennia is an extinct genus of enantiornithean bird. The only known specimen of Cruralispennia was discovered in the Early Cretaceous Huajiying Formation of China and formally described in 2017
Life reconstruction of Cruralispennia