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3.4" Fossil Ankylosaurid Ungual (Claw) - Montana
This is an Akylosaurid ungual (claw bone) that was collected from the Hell Creek Formation on a private lease in Dawson County, Montana. It was found fairly weathered and required some glue stabilization along the edges. There are several known Ankylosaurids from this formation including Ankylosaurus and Denversaurus, so with this quality of preservation, it's not possible to positively identify this bone down to a specific species or genus.
The bone measures about 3.4" long by 3" wide, and comes with a riker mount case for display.
An artists reconstruction of an Ankylosaur. Image Public Domain by Mariana Ruiz
Ankylosaurs were herbivorous dinosaurs that lived during the Cretaceous (65-68 million years ago). As the evolution of Ankylosaurus progressed, they developed bony armor that covered their bodies in the form of plates, scutes and spikes, with some even developing armor on their eyelids. While their armor and bone-shattering tail club are thought to have been used for defensive purposes against predators such as Tyrannosaurus, it's possible that some of the armor on their head may have been used for display. Adult Ankylosaurs are believed to have reached up to 25 feet in length and weigh 3.3 tons!
The bone measures about 3.4" long by 3" wide, and comes with a riker mount case for display.
An artists reconstruction of an Ankylosaur. Image Public Domain by Mariana Ruiz
Ankylosaurs were herbivorous dinosaurs that lived during the Cretaceous (65-68 million years ago). As the evolution of Ankylosaurus progressed, they developed bony armor that covered their bodies in the form of plates, scutes and spikes, with some even developing armor on their eyelids. While their armor and bone-shattering tail club are thought to have been used for defensive purposes against predators such as Tyrannosaurus, it's possible that some of the armor on their head may have been used for display. Adult Ankylosaurs are believed to have reached up to 25 feet in length and weigh 3.3 tons!
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
Indeterminate Ankylosaur
LOCATION
Dawson County, Montana
FORMATION
Hell Creek Formation
SIZE
3.4" long, 3" wide
CATEGORY
SUB CATEGORY
ITEM
#183999
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