Dinosaurs Extinct Species Fossils Ecology Ecosystems Evolution Neogene Extinction Events Quaternary Period Species Classification Arthropods Mesozoic Era Dinosaur Reconstruction Mammoths Ice Age Period Cretaceous Crocodyliforms Prehistoric Birds Paleoart Synapsids Extinction Woolly Mammoths Crocodilians Marine Reptiles Dinosaur Studies
Bite‑mark analysis of museum fossils shows river‑scale crocodylians killed large herbivores and likely controlled wetland food webs.