0.5 Crocodile Borealosuchus Fossil Tooth Judith River FM Montana COA Display
Location: Judith River Formation, Montana (Private Land Origin)
Weight: 0.3 Ounces
Dimensions: 0.5 Inches Long, 0.2 Inches Wide, 0.2 Inches Thick
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Comes with a Free Display.
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.
The genus Borealosuchus was created following a careful revision of the genus Leidyosuchus, which had long been considered a “wastebasket taxon”, used to group species that were difficult to classify. As a result, four species formerly assigned to Leidyosuchus were moved to Borealosuchus, and two additional species have since been recognized.
Borealosuchus was a mid-sized crocodile, with the largest known species, Borealosuchus acutidentatus, reaching about 2.8 meters (280 centimeters) in length and having a skull approximately 36 centimeters long. Its moderate size and physical traits suggest it was an effective predator in rivers, lakes, and wetlands, likely feeding on fish and smaller vertebrates.
Importantly, Borealosuchus was one of the crocodilian genera that survived the K–T extinction, the massive event that wiped out the dinosaurs, pterosaurs, and many large marine reptiles. Other crocodile genera, including Dyrosaurus and Brachychampsa, also endured this extinction, suggesting that crocodiles’ physiological resilience, ecological versatility, and semi-aquatic lifestyle may have allowed them to survive when many other species perished.
