Dilong was comparatively small, with a total length of 1.6 metres (about 5 feet) and an estimated mass of 5 kg (about 11 pounds). Dilong differed from Tyrannosaurus in having proportionally larger forelimbs and three-fingered grasping hands. It also shared many advanced features of the skull with later tyrannosaurs—such as fused nasal bones, extensive sinuses, and a rounded snout with anterior teeth that are D-shaped in cross section. This pattern of anterior teeth gave the dinosaur a “cookie-cutter” bite when hunting or consuming prey. In most other aspects of its anatomy, Dilong resembled juveniles of larger and later tyrannosaurs. The existence of Dilong demonstrates that tyrannosaurs were anatomically distinctive before they evolved into gigantic predators.
Model #: 421301
Size: 5.5” x 2.5” (14 x 6.4 cm)
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