Actinofibril The fibre found in pterosaurs’ wings. Several layers of actinofibrils stretched across the wings, stiffening them, thus making flying easier.
Anurognathus A small pterosaur from the Triassic Period. With a wingspan of 35 centimetres (14 inches), it was the smallest known pterosaur. It had a short tail, long skull and sharp, pointed teeth. It probably ate insects.
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