单爪龙

单冠龙（“单冠蜥蜴”）是一种来自中侏罗纪（约 1.7 亿年前）的食肉恐龙，发现于中国。它的体长为 5 至 6 米，身高 2 米，与异特龙属同类。

Monolophosaurus ("one-crested lizard") was a carnosaur from Middle Jurassic (about 170 mya) ,found from China. It was 5-6 meters long and 2 meters high.Related to allosaurs.