Dinosaurs Ice Age Cretaceous Period Dinosaur Era Jurassic Period Pleistocene Epoch Mesozoic Era Dinosaur Evolution Miocene Epoch Mammoths Triassic Period Permian Period Dinosaur Discovery Extinction Events Megafauna Mastodon Mastodon Discovery Jurassic Era Marine Biology Marine Prehistory Dinosaur Behavior Mammoth Species Marine Reptiles Ancient Species Paleontology Magdalenian Period Mammoth Extinction Proboscideans Mass Extinction Events Continental Drift Marine Life Extinct Species Human-Animal Interaction Early Earth Mass Extinctions Ancient Ecosystems Dinosaur Species Dinosaur Communities Mammals Mastodons
Geologists identify a massive vertebra from Mosasaurus hoffmannii, providing new insights into the ancient marine ecosystems of the Gulf Coast.