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1.9" Fossil Dinosaur Caudal Vertebra - Two Medicine Formation
This is a 1.9" long caudal (tail) vertebra from the distal end of the tail, collected from the Two Medicine Formation of Montana. There is no repair or restoration to this specimen, though everything superior to the centrum has weathered away.
Based on abundance and shape of the vertebra, it's very possible this came from the hadrosaur, Hypacrosaurus. However, the lack of vertebral and the significant weathering makes it difficult to accurately identify.
Based on abundance and shape of the vertebra, it's very possible this came from the hadrosaur, Hypacrosaurus. However, the lack of vertebral and the significant weathering makes it difficult to accurately identify.
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
Hypacrosaurus?
LOCATION
Pondera County, Montana
FORMATION
Two Medicine Formation
SIZE
1.9 x 1.4"
CATEGORY
SUB CATEGORY
ITEM
#234719
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