Mosasaurus Sea Rex in Monstrous Seas_MSphoto August 29, 2025 Return to: Dinosaurs, Reptiles, and More: Edelman Fossil Park & Museum Opens in New JerseyFull resolution (2048 × 1536) Image navigation Previous Image Next Image The Monstrous Seas hall contains this model of the 55-foot-long Mosasaurus, the apex predator of the Cretaceous ocean: Sea Rex, a sign says. Photo by Mike Squires
