The Illustrated Encyclopedia of Dinosaurs: An Original and Compelling Insight Into Life in the Dinosaur KingdomA detailed examination of the world of dinosaurs, their appearance, behavior, and families, describing current theories about their extinction and explaining how paleontologists study their fossilized remains. |
From inside the book
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Page 14
... rocks so far discovered are about 3,600 million years old ; however , there must have been a considerable period of time before this when the hot molten Earth cooled sufficiently for a crust of rocks to form . By dating meteorites which ...
... rocks so far discovered are about 3,600 million years old ; however , there must have been a considerable period of time before this when the hot molten Earth cooled sufficiently for a crust of rocks to form . By dating meteorites which ...
Page 16
... rocks contain magnetic iron particles . While these rocks are still molten , the particles point toward the magnetic pole just like compass needles . Once the rock has solidified , this magnetic bearing is preserved permanently . By ...
... rocks contain magnetic iron particles . While these rocks are still molten , the particles point toward the magnetic pole just like compass needles . Once the rock has solidified , this magnetic bearing is preserved permanently . By ...
Page 18
... rocks of Permian age . Finally it is necessary to find exposures of sedimentary rock . It is again of no use if the sedimentary rocks that contain dinosaurs are buried thousands of feet beneath the ground . We are helped here in a ...
... rocks of Permian age . Finally it is necessary to find exposures of sedimentary rock . It is again of no use if the sedimentary rocks that contain dinosaurs are buried thousands of feet beneath the ground . We are helped here in a ...
Other editions - View all
The Illustrated Encyclopedia of Dinosaurs: An Original and Compelling ... David Norman,John Sibbick No preview available - 1998 |
The Illustrated Encyclopedia of Dinosaurs: An Original and Compelling ... David Norman No preview available - 1998 |
Common terms and phrases
Albertosaurus Allosaurus Anchisaurus animals ankylosaurids Apatosaurus archosaurs armour beak Bernissart bipedal birds body bones bony Brachiosaurus Camarasaurus carnivorous carnosaurs Centrosaurus ceratopians ceratopids claws Coelophysis coelurosaurs Compsognathus creatures crests Cretaceous Period crocodiles Deinonychus described Digit dinosaurs diplodocids Diplodocus discovered discovery dromaeosaurids early excavated extinct Eye socket fingers foot forelimbs fossil frill front legs hadrosaurids head herbivorous Heterodontosaurus hindlimbs horns Hypsilophodon hypsilophodontids Iguanodon iguanodontids known late Cretaceous late Jurassic late Triassic living lizards lower jaw mammals Marsh Mesozoic Mongolia muscles Museum Natural History neck nodosaurids North America nostrils ornithischians ornithomimosaurs ornithopods Ouranosaurus pachycephalosaurs palaeontologists pelvis plant Plateosaurus plates predators preserved prey probably prosauropods Protoceratops pterosaurs pubis relatively remains reptile rocks saurids sauropods saurus Scelidosaurus shoulder similar skeleton skull slender snout species specimen spikes spines Stegosaurus Struthiomimus tail teeth thecodontians theropods toes Triassic Triceratops types typical tyrannosaurids upper vertebrae