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Baby Tyrannosaurus rex discovered, 72 Bakker, Bob, 134, 136 metabolism of Tyrannosaurus rex, 186-187 Nanotyrannus lancensis named by, 133 nerve pathways of Tyrannosaurus rex, 189 speed of Tyrannosaurus rex, 193-194 Barosaurus, 192

Behaviors imagined for Tyrannosaurus rex, 94-96

Birds as descendents of dinosaurs, 124 and dinosaurs, 163 Birds, similarities to late dinosaur carnivores, 106

Bjork, Phil, 64, 67-68 Black Beauty, 64, 70 Bone studies of dinosaurs information from, 186 metabolism and, 183-186 Bones individual, 116-121

information learned from, 102-103 Bradley, Robert, 131 Braincase of Tyrannosaurus rex, 187 Brigham Young University, dinosaurs at, 99100

Brontosaur, 14 Brown, Barnum, 63, 66

discovery of original Tyrannosaurus rex, 57, 58-61, 64

Gorgosaurus Sternberg/ named by, 132 C

Carbon dioxide, effect on size of

Tyrannosaurus rex, 180

Carnegie Museum of Natural History, 30 Carpenter, Ken, 35, 37, 75, 97, 135-136 CAT scan of skull, 104-105 Cause of death of dinosaurs, 30-31 Cervical ribs of Tyrannosaurus rex, 118 Changes in dinosaur community over time, 158-159

Characteristics of dinosaurs, 124 Charles M. Russell Wildlife Refuge, 33, 38 Chin, Karen, 203

Chingkankousaurus fragilis, 134

Cladogenesis, 139 Climate, 153-154 Clouse, Vicki, 42 Cobb, David, 75

Coelophysis, 141

Colinvaux, Paul, 179

Colors of Tyrannosaurus rex, 92, 93-94 Compsognathus, 126

Condition of dinosaurs found, 30-31 Cranial architecture of dinosaurs, 190 Cretaceous period, dinosaurs in, 127 Cretaceous (seaway), 23 Currie, Phil, 24, 69, 85, 134 finding of Albertosaurus skeletons, 138 hearing of Tyrannosaurus rex, 188 metabolism of Tyrannosaurus rex, 186 naming of Nanotyrannus lancensis, 133 renaming of Nanotyrannus, 137 study of skull of Tyrannosaurus rex, 103 teeth of Tyrannosaurus rex, 215 theory on size of Tyrannosaurus rex, 178179

tyrannosaurids, 129

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