8 Prehistoric Creatures That Made Earth Look Alien 70 Million Years Ago

What did Earth look like 70 million years ago? Near the end of the Late Cretaceous, enormous dinosaurs still walked the continents, giant pterosaurs crossed the skies, and powerful marine reptiles inhabited the oceans. In this episode of Lost Worlds of Earth, we reconstruct eight extraordinary prehistoric animals using fossil evidence and scientifically informed visualization: Alamosaurus — one of North America’s last giant sauropods. Quetzalcoatlus — among the largest flying animals ever known. Carnotaurus — the strange horned predator of South America. Deinocheirus — a giant omnivore once known only from enormous arms. Ankylosaurus — a heavily armored herbivore equipped with a massive tail club. Edmontosaurus — a huge hadrosaur with sophisticated dental batteries and preserved skin. Pachycephalosaurus — the dinosaur with a mysterious thick skull dome. Mosasaurus — one of the great marine reptiles of the Late Cretaceous seas. Every reconstruction involves some uncertainty. Where behavior or appearance cannot be known directly, this documentary uses conservative, scientifically plausible interpretations and separates fossil evidence from reconstruction. CHAPTERS: 00:00 — Earth 70 Million Years Ago 00:40 — Alamosaurus 01:40 — Quetzalcoatlus 02:40 — Carnotaurus 03:40 — Deinocheirus 04:40 — Ankylosaurus 05:40 — Edmontosaurus 06:40 — Pachycephalosaurus 07:40 — Mosasaurus 08:40 — The Evidence Remains Lost Worlds of Earth Reconstructing Worlds That No Longer Exist. Prehistoric Ecosystems • Extinct Life • Fossil Mysteries #PrehistoricEarth #Dinosaurs #Paleontology