Predatory Dinosaurs of the World: A Complete Illustrated GuideProvides a species-by-species catalog of predatory dinosaurs known to have existed. |
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Page 35
... trackways . John Ostrom's 1972 statistical study of such parallel trackways showed that this could not be coincidence . Some of the group trackways are due to their following shorelines and the like , but as Ostrom showed the majority ...
... trackways . John Ostrom's 1972 statistical study of such parallel trackways showed that this could not be coincidence . Some of the group trackways are due to their following shorelines and the like , but as Ostrom showed the majority ...
Page 137
... trackways . Trackways are important because , potentially , they offer a direct way of measuring the speed of the animal that made them . This is fairly easy to do because the size of the track maker can be estimated by the size of the ...
... trackways . Trackways are important because , potentially , they offer a direct way of measuring the speed of the animal that made them . This is fairly easy to do because the size of the track maker can be estimated by the size of the ...
Page 138
... trackways show that small- and medium - sized theropods could run , and that the smaller ones could probably run very fast . It cannot be proven that large theropods were slow by their trackways , because , as I've explained , this ...
... trackways show that small- and medium - sized theropods could run , and that the smaller ones could probably run very fast . It cannot be proven that large theropods were slow by their trackways , because , as I've explained , this ...
Contents
Preface | 11 |
CONTENTS | 17 |
LifeStyles of the Big and Powerful and the Small | 27 |
Copyright | |
13 other sections not shown
Common terms and phrases
Albertosaurus allosaurs AMNH animals ankle antirrhopus Archaeopteryx archosaurs avetheropods avian Avimimus Bakker Barsbold big theropods bigger birdlike birds braincase brontosaurs cannon bone carnivores Ceratosaurus claws Coelophysis crocodilians Dilophosaurus dino dromaeosaurs ectotherms endotherms evolved extinct fauna feathers femur FEMUR LENGTH flight flying forelimbs Formation fossil genus giant gracile head herbivorous herbivorous dinosaurs herrerasaurs hind limbs HIP HEIGHT horn joint Jurassic HORIZON juvenile KILOGRAMMAGE known Lagosuchus Late Cretaceous HORIZON late Late Cretaceous libratus living lizards look lower jaw MAIN ANATOMICAL mammals Megalosaurus metabolic rates Mongolia mongoliensis muscles neck nosaurs Ornithomimus ostrich ostrich-mimics Ostrom Oviraptor paleodinosaurs Paleont paleotheropods predators PREDATORY DINOSAURS preorbital prey primitive probably Protoavis protobirds relative reptiles restorations Russell saurs sickle-claws similar skeletal skeleton SKULL LENGTH slender small theropods smaller snout species specimen speed Spinosaurus tail teeth thecodonts thero theropods things trackways Troodon tyrannosaurs Tyrannosaurus rex upper Velociraptor vertebrae WORLD Туре