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10.3" Hadrosaur (Hypacrosaur) Caudal Vertebra with Stand - Montana
This is a stunning, 10.3" tall Hadrosaur (Hypacrosaurus sp.) caudal vertebra from the Two Medicine Formation of Montana. It was collected this last summer and has been nicely prepared from the hard rock surrounding it. It bears a gorgeous centrum with no crack repair, a well preserved neural canal and a natural spinous process, a feature that is often missing or unrecoverable in most caudal vertebrae specimens.
The cortical bone has weathered away from the edges and faces of the centrum. The spinous process was found fractured within the rock and has since been repaired with small spots of gap fill restoration where the bone crumbled away. The base of the process has the most restoration where it attaches to the pedicles/centrum. The prezygapophyses and postzygapophyses are present, though the right prezygapophysis has some restoration to the anterior edge and the left prezygapophysis has a repaired crack with gap fill restoration.
Comes with the pictured custom metal display stand.
The cortical bone has weathered away from the edges and faces of the centrum. The spinous process was found fractured within the rock and has since been repaired with small spots of gap fill restoration where the bone crumbled away. The base of the process has the most restoration where it attaches to the pedicles/centrum. The prezygapophyses and postzygapophyses are present, though the right prezygapophysis has some restoration to the anterior edge and the left prezygapophysis has a repaired crack with gap fill restoration.
Comes with the pictured custom metal display stand.
About Hypacrosaurus
Hypacrosaurus is a very large, Lambeosaurini Hadrsosaur that would have been almost as large as the Tyrannosaurs that it lived alongside. Like Corythosaurus, it had a tall, hollow, rounded crest, although not as large and straight. It is known from the remains of two species that spanned 75 to 67 million years ago in the Late Cretaceous of Alberta, Canada, and Montana, United States, and is the latest hollow-crested duckbill known from good remains in North America. It is estimated to have been around 9.1 meters (30 feet) long and to have weighed up to 4-5 tons.
Hypacrosaurus drawing by Wikipedia user debivort. Creative Commons License
Hypacrosaurus is a very large, Lambeosaurini Hadrsosaur that would have been almost as large as the Tyrannosaurs that it lived alongside. Like Corythosaurus, it had a tall, hollow, rounded crest, although not as large and straight. It is known from the remains of two species that spanned 75 to 67 million years ago in the Late Cretaceous of Alberta, Canada, and Montana, United States, and is the latest hollow-crested duckbill known from good remains in North America. It is estimated to have been around 9.1 meters (30 feet) long and to have weighed up to 4-5 tons.
Hypacrosaurus drawing by Wikipedia user debivort. Creative Commons License
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 sp.
LOCATION
Pondera County, Montana
FORMATION
Two Medicine Formation
SIZE
Vertebra Size: 10.3 x 4 x 2.9", Height on Stand: 11" tall
CATEGORY
SUB CATEGORY
ITEM
#192743
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