Hunting the Dinosaurs and Other Prehistoric AnimalsExamines how paleontologists discover, study, classify, reconstruct, and restore the fossil remains of many kinds of dinosaurs. |
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Page 6
... old to us . The youngest mountain chain is the Himalayas . Laurasia Gondwanaland 180 million years ago , the continents were all joined . In the north was Laurasia . In the south was Gondwanaland . They are only 50 million years old ...
... old to us . The youngest mountain chain is the Himalayas . Laurasia Gondwanaland 180 million years ago , the continents were all joined . In the north was Laurasia . In the south was Gondwanaland . They are only 50 million years old ...
Page 7
... older than that — 4,600 million years old . Other features of the Earth are young if we think in Earth - age terms . Rivers , lakes , forests and deserts have all changed . Even the continents have changed their shapes and locations ...
... older than that — 4,600 million years old . Other features of the Earth are young if we think in Earth - age terms . Rivers , lakes , forests and deserts have all changed . Even the continents have changed their shapes and locations ...
Page 9
... years ago . - only 50 million As the plant life on Earth changed , so did animals . Some adapted , and some became extinct . Plants have changed with time : ferns ( 1 ) , 350 million years old ; grass ( 2 ) , 50 million years old ...
... years ago . - only 50 million As the plant life on Earth changed , so did animals . Some adapted , and some became extinct . Plants have changed with time : ferns ( 1 ) , 350 million years old ; grass ( 2 ) , 50 million years old ...
Common terms and phrases
50 million Age of Dinosaurs Alberta amphibians animal looked animal that lays animal that lives animals and plants animals today archosaurs backbone backdrop body temperature Books About Dinosaurs call dinosaurs Carboniferous cold-blooded continents control its body Cooksonia crocodiles DINOSAUR LIBRARY Hunting dinosaur remains Dinosaur State Park Dinosaurs Hunting dinosaurs ruled discovered Edward Drinker Cope environment ferns fins forests evolved fossil skeletons fossilized remains Gondwanaland group of reptiles groups of vertebrates habitat group horny skin Horsetails Hunting the Dinosaurs ichthyosaur Iguanodon Jane Burton Jurassic Cretaceous Kill the Dinosaurs land late Triassic period Laurasia lizard lizard-hipped mammals Mantell meteor strike million years ago million years old mold mounted skeleton move Museum of Natural Natural History North America Ornithischia Othniel Charles Marsh paleobotany paleogeography Paleontologists plants evolved Prehistoric Animals prehistoric reptiles Pterosaurs RECONSTRUCTIONS AND RESTORATIONS restoration shows ruled the Earth Saurischia scientists suggested streamlined bodies Struthiomimus Styracosaurus teeth for eating Tyrannosaurus whole animal