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2.46" Tyrannosaur Tooth in Rock - Two Medicine Formation, Montana
This is a beastly, 2.46" Tyrannosaur tooth still partially embedded in the hard sandstone that it was found in. It was collected recently from the Two Medicine Formation in Pondera County, Montana. While there are three known Tyrannosaurs (Daspletosaurus, Gorgosaurus and Albertosaurus) from the formation and their teeth are statistically impossible to tell apart, the sheer size of this tooth makes it most likely to be Daspletosaurus.
The serrations on the tooth are fairly worn as most the the fossils found in this hard rock layer are tumbled. The only restoration is some gap fill in the repaired crack near the tip. The rock stands up nicely on a flat surface making for an impressive display. We could trim the rock down a little bit upon request.
The serrations on the tooth are fairly worn as most the the fossils found in this hard rock layer are tumbled. The only restoration is some gap fill in the repaired crack near the tip. The rock stands up nicely on a flat surface making for an impressive display. We could trim the rock down a little bit upon request.
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
About The Two Medicine Formation
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.
A view of the Two Medicine Formation quarry operated by Northwest Montana Fossils, where much of our Two Medicine dinosaur material has been found.
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.
A view of the Two Medicine Formation quarry operated by Northwest Montana Fossils, where much of our Two Medicine dinosaur material has been found.
SPECIES
Daspletosaurus?
LOCATION
Pondera County, Montana
FORMATION
Two Medicine Formation
SIZE
2.46" long, Rock 8.6 x 5.1 x 4.5"
CATEGORY
SUB CATEGORY
ITEM
#143946
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