Serrated, 1.54" Tyrannosaur Tooth - Judith River Formation

This is a 1.54" long Tyrannosaur tooth from the Judith River Formation of Montana. This formation is approximately 75 million years old, or about 9 million years older than the Hell Creek Formation which also produces T. rex. This specimen has very good enamel and serration preservation along both edges. The tip of this tooth is missing but this is likely the result of feeding behavior. The serrations on the distal edge of this tooth are in very good condition with slight wear.

There are three described Tyrannosaurs from the Two Medicine Formation & Judith River Formation; Albertosaurus, Gorgosaurus and Daspletosaurus. Research done on teeth from these three Tyrannosaurs has concluded that isolated teeth are statistically impossible to assign to a specific genus because they are so similar.

Morphometry of the teeth of western North American tyrannosaurids and its applicability to quantitative classification

DETAILS
SPECIES
Albertosaurus, Gorgosaurus or Daspletosaurus
LOCATION
Hill County, Montana
FORMATION
Judith River Formation
SIZE
1.54" long (straightline measurement)
CATEGORY
SUB CATEGORY
ITEM
#123513
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