Archaeopteryx poster Mammal This peculiar anatomy was probably

This peculiar anatomy was probably inherited from long-legged climbers that leaped from trees to trees

This “tiny” tyrannosaur is found in a polar region

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Due to the fragmentary nature of Spinosaurus fossils

Its shoulders were also armed with similar spikes

Archaeopteryx poster Mammal This peculiar anatomy was probablyBy Franz Anthony The discovery of this "first bird from the Jurassic Period Germany in 1861 ignited the idea that birds descended from dinosaurs. Despite its name, Archaeopteryx likely couldn't fly and spent most of its time on the ground and in trees. 10 mil thick Slightly glossy Fingerprint resistant