Impressive, 17.5" Fossil Triceratops Jugal Bone - Montana

This is a massive, 17.5" wide jugal bone of a large adult Triceratops. It was collected from the Hell Creek Formation in Eastern Montana. This incredible specimen is in excellent condition with a beautifully preserved epijugal (armored cheek bone) and a partial orbital just superior to this. The bone preservation is phenomenal, showing some cortical bone and well defined "blood grooves".

On its custom metal stand, this is a very striking display. The wide base and structure of the stand accommodates for the overhanging display of the bone and is very stable.

Measurements:
Entire jugal - 17.5 x 9.7 x 5.7"
Epijugal - approximately 6.3 x 3"
Height on stand - 19.6" tall

There are spots of gap fill restoration where the bone was found disarticulated within the rock. That being said, there are relatively few spots of repair, and gap fill restoration is fairly minimal. Most of the restoration can be seen superior to the epijugal along a repaired crack that runs across the entire bone.

About Triceratops

Triceratops was one of the most iconic North American dinosaurs, living during the Late Cretaceous around 68–66 million years ago. With its enormous frilled skull and three horns, it was an impressive sight and may have used its headgear for display as much as for defense against predators like Tyrannosaurus rex. Adults could grow up to 9 meters (29.5 feet) long, stand about 3 meters (9.8 feet) tall, and weigh as much as 26,000 pounds. Its sturdy build and powerful horns made it a formidable herbivore capable of standing its ground against large predators.



Triceratops had highly specialized teeth arranged in groups called dental batteries, with dozens of tooth columns lining each side of its jaws. Each column contained several stacked teeth that were constantly replaced, giving it hundreds of teeth over its lifetime. This unique system allowed Triceratops to efficiently chew tough, fibrous plants such as ferns, cycads, and palms. Triceratops was designated as the state fossil of South Dakota in 1988.

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.
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DETAILS
SPECIES
triceratops horridus
LOCATION
Eastern Montana
FORMATION
Hell Creek Formation
SIZE
17.5 x 9.7 x 5.7"
CATEGORY
SUB CATEGORY
ITEM
#198927
GUARANTEE
We guarantee the authenticity of all of our specimens.