Ichthyornis

† Ichthyornis — a Late Cretaceous toothed bird from the Western Interior Seaway of North America. Small gull-like piscivore (~20 cm long) with functional teeth, representing a transitional stage between non-avian dinosaurs and modern birds. Discovered by O.C. Marsh in 1872; critically important in.

Diet & Feeding

Piscivore

Ichthyornis was a fish-eating dinosaur. Piscivores typically lived near water sources and had specialized adaptations such as elongated snouts and conical teeth for catching fish.

Time Period

Cretaceous Late Mesozoic Era

Ichthyornis 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.