Tatankaceratops sacrisonorum

† Tatankaceratops sacrisonorum is a Late Cretaceous ceratopsian from the Hell Creek Formation of South Dakota, known from a single skull. It may represent an ontogenetically young Triceratops individual or a distinct small ceratopsian species.

Diet & Feeding

Herbivore

Tatankaceratops sacrisonorum was a plant-eating dinosaur. Herbivores typically fed on ferns, cycads, conifers, and other vegetation available during their era. Many herbivorous dinosaurs developed specialized teeth and digestive systems for processing tough plant material.

Time Period

Cretaceous Late Mesozoic Era

Tatankaceratops sacrisonorum lived during the Cretaceous Late period of the Mesozoic Era, approximately 100.5 to 66.0 million years ago.

The final age of dinosaurs, featuring iconic species like Tyrannosaurus rex, Triceratops, and Velociraptor. Dinosaurs reached their peak diversity before the catastrophic asteroid impact at the Chicxulub crater ended the Mesozoic Era.