other uses for fossils - itc.gsw.eduitc.gsw.edu/faculty/bcarter/isci/fossils.pdf · 15 camb 600m y...

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Other Uses for Fossils

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Other Uses for Fossils

Plate Tectonics

Glossopteris (a seed fern or “tongue fern”) Lystrosaurus (a terrestrial reptile)

Mesosaurus (a freshwater lizard-like reptile) Cynognathus (a terrestrial reptile)

S. America

Africa

Antarctica

Australia

India

Lots of Coral Species

Still a Lot of Them

Not So Many

Quite a Few

Hardly Any at All

Zip

30°N

Equator

30°S

Modified from an image at http://www.coralsoftheworld.org

Decreasing

Diversity

DecreasingDiversity

Decreasing

Diversity

?

Dating Rocks/Evolution

Paleoecology

EOCENE AND OLIGOCENE (EARLY CENOZOIC) FOSSILS FROM NEAR AMERICUS

PENNSYLVANIAN (LATE PALEOZOIC) FOSSILS FROM THE APPALACHIANS

Extinctions