On the Hualong bird mouth has the sharp tooth, the coccygeal vertebra is specially long, altogether has 50 multisection coccygeal vertebrae, the hind legs is long and is sturdy.

• 中华龙鸟嘴上有锐利的牙齿，尾椎特别长，共有50多节尾椎，后肢长而粗壮。