Cretaceous Period Evolution Pterosaurs Herbivorous Dinosaurs Terror Birds Reptiles and Amphibians Apatosaurus Parasaurolophus Late Triassic Period Jurassic Period Fossil Records Trackways Sauropods Carnivorous Dinosaurs Footprint Analysis Fossil Evidence Fossil Record Stegosaurus Marine Dinosaurs Triassic Period Plant-Eating Dinosaurs Pachyrhinosaurus
Research using occupancy modeling suggests perceived diversity reduction was due to fossil record biases, not an actual population drop, though debate persists.