Late Cretaceous

Extinct Ceratodus latissimus among reeds on the ocean floor

Nyctosaurus gracilis, extinct pterosaur

Pteranodon longiceps flying over the sea

Hesperornis regalis, extinct flightless bird, Cretaceous

Iguanodon bernissartensis in a prehistoric fern forest

Hesperornis regalis, extinct cormorant-like bird

Brontornis battling a Hadrosaurus

Mosasaurus hoffmannii, extinct aquatic reptile

Torosaurus latus and Monoclonius crassus