Terminonaris is a genus of extinct pholidosaurid crocodyliforms that lived during the Late Cretaceous (Cenomanian and Turonian[1][2]) epoch.

Terminonaris inhabited the Western Interior Seaway, an inland sea that stretched from the Gulf of Mexico to the Arctic Ocean during Late Cretaceous time.

The discovery was made by paleontologist Tim Tokaryk from the Royal Saskatchewan Museum, guided by local fossil hunter Dickson Hardie.

The area where Bert was discovered has yielded many fossils, including remains of birds, sharks, bony fish, dinosaurs, turtles, and plesiosaurs.

[6] Big Bert is believed to have lived about 92 million years ago, at a time when the Carrot River area was near the eastern shoreline of the Western Interior Seaway.

The second was installed at the Pasquia Regional Park in the Dickson Hardie Interpretive Centre, near Bert's Carrot River home.

[8] In 2005 an amateur fossil enthusiast and rural mail carrier named Brian Condon discovered a 96 million year old Terminonaris while fossil-hunting close to his home on Lake Lewisville near Dallas, Texas.