A New Enantiornitine Bird with Four Long Rectrices from the Early Cretaceous of Northern Hebei, China

: Paraprotopteryx gracilis , a new enantiornithine bird from the Early Cretaceous Yixian Formation in Fengning, northern Hebei Province is erected, based on the following characters: Y‐shaped furcula with a long hypocleidum and a much narrow interclavicular angle, and the morphology of the sternum are different from other enantiornithines. Additionally, alular digit bearing the biggest manual claw extends distally to the distal end of the major...