No, what's semantically nonsense is the idea that the dinosaurs were in any sense "wiped out" by the K-T mass extinction event. There's nothing that distinguis

No, what's semantically nonsense is the idea that the dinosaurs were in any sense "wiped out" by the K-T mass extinction event. There's nothing that distinguishes "birds" cladistically other than the random fact of being the closest relatives to all surviving dinosaurs. "Birds" is just a random clade of post-Cretaceous dinosaurs, it's not real in any meaningful sense.