title: Paleontology. Four-winged dinos create a flutter.
authors.forename: Erik
authors.initials: E
authors.lastname: Stokstad
mesh_terms: D000818:Animals; D005075:Biological Evolution; D001696:Biomechanical Phenomena; D001717:Birds / Q000033:anatomy & histology / Q000502:physiology; D002681:China; D025061:Dinosaurs / Q000033:anatomy & histology / Q000502:physiology; D005241:Feathers; D005426:Flight, Animal; D005552:Forelimb / Q000033:anatomy & histology; D005580:Fossils; D006614:Hindlimb / Q000033:anatomy & histology; D008124:Locomotion