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Archaeopteryx, sometimes referred to by its German name Urvogel ("original bird" or "first bird"), is the earliest and most primitive bird known. Archaeopteryx lived in the late Jurassic Period around 155–150 million years ago, in what is now southern Germany during a time when Europe was an archipelago of islands in a shallow warm tropical sea, much closer to the equator than it is now.

Archaeopteryx

Archaeopteryx, sometimes referred to by its German name Urvogel ("original bird" or "first bird"), is…

An illustration of the skull of a megalosaurus. Megalosaurus is a genus of large meat-eating theropod dinosaurs of the Middle Jurassic period (Bathonian) of Europe (Southern England, France, Portugal). It is significant as the first genus of dinosaur (outside of birds) to be described and named.

Megalosaurus Skull

An illustration of the skull of a megalosaurus. Megalosaurus is a genus of large meat-eating theropod…