Pterosaur
Definition 1 of 2

Historical Context
Understanding pterosaurs as part of the prehistoric world enhances appreciation for their role in ancient ecosystems.

The largest pterosaur had a wingspan of over 30 feet.
Scientific Classification
Pterosaurs are distinct from dinosaurs, though they often lived alongside them.

Pterosaurs belong to the clade Pterosauria.
Etymology
The word pterosaur originates from Greek roots meaning 'winged lizard'.

Knowing its origin helps in understanding its classification.
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