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Archaeopteryx, generally accepted as being the oldest known bird, is an important link between birds and other coelurosaurs that has helped to illuminate the evolutionary history (phylogeny) of the … Scientists now know that dinosaurs evolved bird-like characteristics long before the appearance of archaeopteryx †the late jurassic fossil sometimes referred to as the earliest bird. The present scientific consensus is that birds are a group of maniraptoran theropod dinosaurs that originated during the mesozoic era.
As fascinating as it may seem, research has shown that all birds are indeed descended from dinosaurs. Birds share many similarities with their ancient ancestors in terms of physical structure, but they have … According to the current consensus, aves and a sister group, the order crocodilia, together are the sole living members of an unranked reptile clade, the archosauria.
