3.60" T-Rex Tooth - Excellent Preservation!

High quality Tyrannosaurus rex teeth are not only hard to find but are probably the most collectable type of fossil there and tend to get snapped up as soon as they hit the market. This one is in excellent shape, is 3.60" long (straightline), and extremely thick. Much of the enamel is in good shape. The serrations are present on both edges of the tooth. There is only very minimal repair and just a tiny bit of restoration near the base. Not only is this a rare, hard to acquire tooth but it is in excellent shape overall.

The tooth most likely came from the dentary, tooth position 2-6. It's big enough that it would have come from an adult T-Rex. Based on tooth size comparisons it probably came from an animal around 30-36 feet in length, a bit smaller than Stan.

This tooth was found at a private ranch in Butte County, South Dakota this summer. It comes from a quarry known as the "Tooth Draw Quarry" that has produced many high quality dinosaur teeth over the past several decades. In the Late Cretaceous some 65 million years ago, this quarry was located in a sub-tropical floodplain that would have been similar to modern day coastal Louisiana. It consists of 2 meters of alternating sandstone and gravel, representing a river channel lag deposit. It has produced many isolated dinosaur teeth including T-Rex, Nanotyrannus, Raptors and Triceratops, but teeth like this one are RARE finds.

The last two photos show the collecting location.
Tyrannosaurus rex
Butte County, South Dakota
Hell Creek Formation
3.60" (straight line)
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