Late Jurassic
Western North America

Unlike the side, or lateral, tooth of Allosaurus (see 107) the crown of a tooth from the front of the upper or lower jaw is roughly D-shaped in cross section. This reflects the nipping, as opposed to slicing, function of the front teeth.

This is not a tooth shed during the life of the Allosaurus, because a shed tooth lacks a root. The large elliptical depression on the tooth’s inner side is where the crown of the replacement tooth pressed against it.

This complete tooth probably fell out of the jaw of an Allosaurus after the animal was dead.

Size: 4"

WEP, with informative label

Price: $15.00

Click on image to enlarge.