Period mya 540 490 445 415 360 300 250 200 145 65 2.6 0.0 Paleogene Neogene Cambrian Ordovician Sikurlan Devonlan Carboniferous Permian Triassic Jurassic Cretaceous Quaternary Bar width represents numbor of living families Extinction Extinction Groups experiencing mass extinction Extinction Extinction Ordovician: 50% of animal families, including many trilobites. Extinction Cretaceous: 50% of animal families, including the last of the non-avian dinosaurs and many marine species. Dovonian: 30% of animal families, including many fishes and trilobites. Triassic: 35% of animal families-in particular, many reptiles. Permian: 60% of animal families, including many marine species, insects, amphibians, and all remaining trilobites.

Period mya 540 490 445 415 360 300 250 200 145 65 2.6 0.0 Paleogene Neogene Cambrian Ordovician Sikurlan Devonlan Carboniferous Permian Triassic Jurassic Cretaceous Quaternary Bar width represents numbor of living families Extinction Extinction Groups experiencing mass extinction Extinction Extinction Ordovician: 50% of animal families, including many trilobites. Extinction Cretaceous: 50% of animal families, including the last of the non-avian dinosaurs and many marine species. Dovonian: 30% of animal families, including many fishes and trilobites. Triassic: 35% of animal families-in particular, many reptiles. Permian: 60% of animal families, including many marine species, insects, amphibians, and all remaining trilobites.

Biology (MindTap Course List)

11th Edition

ISBN:9781337392938

Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Chapter30: An Introduction To Animal Diversity

Section: Chapter Questions

Problem 3TYU: The Cambrian radiation (a) occurred during the late Cambrian period (b) was a rapid evolution of new...

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