Tag: dinosaurs

While it is well established that birds evolved from dinosaurs, the timing of this transition has long been debated. Some studies suggest that birds’ earliest diversification occurred during the Jurassic Period, though the fossil record has been sparse and fragmentary. Archaeopteryx, often considered the earliest known and arguably the only Jurassic bird, has long been the focus of this debate.

Although Archaeopteryx possessed feathered wings, it closely resembled non-avian dinosaurs, particularly due to its long, reptilian tail, which is in stark contrast to the short tails seen in modern birds. Recent research has even questioned whether Archaeopteryx should be classified as a bird, suggesting instead that it may be more closely related to the deinonychosaurs, a group of theropod dinosaurs.