
New fossil Norellraptor barsboldi suggests flight evolved independently in birds and feathered dinosaurs
Researchers describe a new 57-centimeter microraptorine dinosaur, Norellraptor barsboldi, from the Lower Cretaceous of China. The fossil exhibits flight-related adaptations similar to birds but evolved them independently. Analysis of bone histology and phylogenetic data indicates that flight adaptations in microraptorines and birds arose through different developmental and evolutionary pathways, rather than being inherited from a common ancestor.











