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1.8" Crocodile Borealosuchus Fossil Jaw Section Judith River FM Montana COA

$127.99

Location: Judith River Formation, Montana (Private Land Origin)

Weight: 0.3 Ounces

Dimensions: 1.8 Inches Long, 0.6 Inches Wide, 0.4 Inches Thick

Comes with a Certificate of Authenticity.

The item pictured is the one you will receive. 

Cretaceous Age through to the Eocene Age 


Name: Borealosuchus ‭(‬Boreal crocodile‭)‬.

Named By: Chris Brochu‭ ‬-‭ ‬1997.

Classification: Chordata,‭ ‬Reptilia,‭ ‬Crocodylomorpha,‭ ‬Crocodylia.

Diet: Carnivore/Piscivore.

Size: Up to‭ ‬2.8‭ ‬meters long,‭ ‬though there is some variance between species.

Time period: Campanian of the Cretaceous through to the Eocene.

Fossil representation: ‭Skulls and postcranial remains.

Borealosuchus emerged from a taxonomic reorganization of the genus Leidysuchus, which had accumulated numerous species of uncertain validity. Four former Leidysuchus species were reclassified as Borealosuchus, with additional species subsequently identified. This mid-sized crocodilian reached impressive proportions, with B. acutidentatus specimens exceeding 280 centimeters in total length and featuring skulls approaching 36 centimeters. Notably, Borealosuchus persisted through the K-T extinction event that devastated non-avian dinosaurs, pterosaurs, and marine reptiles. The genus's survival, alongside contemporaries like Dyrosaurus and Brachychampsa, suggests that crocodilians possessed physiological and ecological adaptations uniquely suited to withstand catastrophic environmental upheaval.