A new study links fossilized flying reptile tracks to animals that made them. Fossilized footprints reveal a 160-million-year-old invasion as pterosaurs came down from the trees and onto the ground.

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A skeletal reconstruction of a comb-jawed pterosaur walking across an ancient mudflat, its posture and movement informed by fossil trackways. Fossils of footprints over 160 million years old have ...