The tooth of a mosasaur

The tooth of a large aquatic Mosasaur reptile is black. The crown of the tooth is in the shape of a curved cone, hollow, with a pronounced edge on the back and front surfaces. The enamel has numerous chips. The crown tip is chipped.
The crown height is 5.1 cm, the neck of the tooth is 0.8 cm, and the root length is 6.3 cm.The root is hollow inside.
Class: Reptilia
Order: Squamata
Suborder: Mosasauria
Dating: Cretaceous period of Maastricht
Material: bone.
Technique: fossilization.
Size: 11,4х3,9х3,3 cm