1.37" Serrated Tyrannosaur Tooth - Two Medicine Formation
This is a 1.37" long tyrannosaur tooth collected last summer from the Two Medicine Formation of Pondera County, Montana. Serrations can be found along both edges of the tooth. There are two repaired cracks through the tooth. There is some restoration at the tip and gap fill restoration along the basal edge.
Comes with a floating frame display case.
Three species of tyrannosaur have been described from the Two Medicine & Judith River Formations: 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
Morphometry of the teeth of western North American tyrannosaurids and its applicability to quantitative classification
The Two Medicine Formation is a geographical formation in Central Montana and Southern Alberta, Canada. The formation is predominantly sandstone laid down by rivers and deltas during the Campanian Age of the Cretaceous, about 80-75 million years ago. Approximately two thousand feet thick on the western edge, it lies on top of the Virgelle Sandstone formation and under the Bearpaw Shale. It is located between the Front Range of the Rocky Mountains and the Sweetgrass Arch, a tectonic fold feature 40-90 miles east of the Front Range.
The Two Medicine is the same age as the Judith River Formation found further east. It was laid down further inland from the Western Interior Seaway, while the Judith River Formation was deposited along the coast. The Two Medicine contains much of the same dinosaur fauna, but fewer reptiles, amphibians, and aquatic fossils.
The Two Medicine is the same age as the Judith River Formation found further east. It was laid down further inland from the Western Interior Seaway, while the Judith River Formation was deposited along the coast. The Two Medicine contains much of the same dinosaur fauna, but fewer reptiles, amphibians, and aquatic fossils.
SPECIES
Albertosaurus, Gorgosaurus, or Daspletosaurus
LOCATION
Pondera County, Montana
FORMATION
Two Medicine Formation
SIZE
1.37" long (straightline)
CATEGORY
SUB CATEGORY
ITEM
#299669
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