The kids were amazed by the huge fossil of pterodactyls at the dinosaur exhibition.

pterodactyls 是 pterodactyl 的复数形式，由希腊词根 ptero-（意为"翅膀"）和 dactyl（意为"手指"）组成，字面意思是"有翼的手指"，指一种已灭绝的会飞行的爬行动物，中文称为"翼龙"。