The Collapse of Ecosystems

The Collapse of Ecosystems

Douglas H. Erwin Dept of Paleobiology, National Museum of Natural History

Smithsonian Institution, Washington DC And

Santa Fe Institute, Santa Fe, NM

Hull et al. Nature 2015

Biological Classification

Body Fossils

Body Fossils

Marine invertebrates Durably Skeletonized Geographically Widespread

Long Timespan

Bad Things Happen (fast) Things Get Better (slowly)

New Things Happen

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