The type specimen of Dilong was about 1.6 m ( 5.2 ft ) in length .
Type specimen is thought to be a juvenile and may have been over 2 m ( 6.6 ft ) long when fully grown .
The type specimen of Dilong was about 1.6 m ( 5.2 ft ) in length , but it is thought to be a juvenile and may have been over 2 m ( 6.6 ft ) long when fully grown .