Researcher questions whether powered flight appeared on non-avialan dinosaurs

(University of Malaga) “Birds are a group of dinosaurs of which we have discovered 150-million-year-old fossils with fully developed wings. Among their closest non-avialan relatives, we have also found fossils with sufficiently developed wings that could provide them with some aerodynamic benefit, whether to glide between trees or get thrust to climb and jump over obstacles. But this does not mean that they could take off by flapping their wings or maintain a powered flight”, explains Francisco Serrano.