The Cretaceous Tertiary extinction the frill is gone

Chapter objectives 321

How important were the deaths of a few dinosaurs? 322

Geological record of the latest Cretaceous 322

Biological record of the latest Cretaceous 327

Box 15.1: Extinction 329

Box 15.2: Dinosaurs: all wrong for mass extinctions 335

Extinction hypotheses 336

Box 15.3: The real reason the dinosaurs became extinct 340 Summary 342 Selected readings 343 Topic questions 344

Glossary 345 Figure credits 361 Index of subjects 363 Index of genera 374

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