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7.2" Hadrosaur (Edmontosaurus) Caudal Vertebra - Montana
This is a distal caudal vertebra of a Hadrosaur (Edmontosaurus annectens) from the Hell Creek Formation of Dawson County, Montana. It is in wonderful condition, complete with a spinous process, a beautifully preserved centrum, and a natural prezygapophysis (right side). Most of the cortical bone has weathered away, exposing the bone cell canals within. The rock within the neural canal has been prepped away.
The entire vertebra measures 7.2 x 5.7 x 3" when sitting on a flat surface.
Most of the spinous process has been reconstructed which is common for spinous processes due to their fragile nature. The restoration of the process starts at the base and continues upward through most of the bone. There are repaired cracks through each pedicle and the left anterior prezygapophysis is restored.
The entire vertebra measures 7.2 x 5.7 x 3" when sitting on a flat surface.
Most of the spinous process has been reconstructed which is common for spinous processes due to their fragile nature. The restoration of the process starts at the base and continues upward through most of the bone. There are repaired cracks through each pedicle and the left anterior prezygapophysis is restored.
Hadrosaurs
are frequently referred to as duck-billed dinosaurs and are members of the Ornithischian family Hadrosauridae. They were fairly common herbivores that roamed Asia, Europe, and North America during the Upper Cretaceous Period. Many species of Hadrosaurs had distinctive crests on their heads, some of which had air-filled chambers that may have produced a distinct sound. These crests may have been used for both audio and visual display purposes.
The Hell Creek Formation
Renowned for both its age and rich sedimentary layers, the Hell Creek Formation is one of the most intensively studied fossil-bearing regions on Earth. To date, scientists have documented 158 genera of animals and 64 genera of plants from its rocks, with new finds emerging regularly. Beyond iconic dinosaurs such as tyrannosaurs, ceratopsians, and hadrosaurs, the formation has produced an extraordinary array of life, including amphibians, reptiles, lizards, snakes, turtles, fish, sharks, birds, and early mammals. Together, these fossils provide the most complete picture of the ecosystems that thrived just before the Cretaceous–Paleogene extinction event.
Renowned for both its age and rich sedimentary layers, the Hell Creek Formation is one of the most intensively studied fossil-bearing regions on Earth. To date, scientists have documented 158 genera of animals and 64 genera of plants from its rocks, with new finds emerging regularly. Beyond iconic dinosaurs such as tyrannosaurs, ceratopsians, and hadrosaurs, the formation has produced an extraordinary array of life, including amphibians, reptiles, lizards, snakes, turtles, fish, sharks, birds, and early mammals. Together, these fossils provide the most complete picture of the ecosystems that thrived just before the Cretaceous–Paleogene extinction event.
SPECIES
Edmontosaurus annectens
LOCATION
Dawson County, Montana
FORMATION
Hell Creek Formation
SIZE
7.2 x 5.7 x 3"
CATEGORY
SUB CATEGORY
ITEM
#206498
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