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Unformatted text preview: Early Paleozoic: Cambrian - Ordovician Tectonics Where are cratons
Taconic Orogeny Paleontology Adaptive Radiations
Extinctions Tectonic Setting: Late Cambrian Tectonic Setting: Ordovician 1 Sediments of Laurentia in Cambrian:
A flooded continent Early Cambrian Fossils:
Tommotian - oldest skeletal fossils Trilobite trace fossil
Brachiopods Cambrian Fossils
Burgess Shale: Soft bodies, middle Cambrian Cambrian crinoid short stalk Cambrian Fish
Plate! 2 Note: there is no regression at end of
Ordovician! Taconic Orogeny Ordovician Sea Floor 3 Ordovician Fossils
Nautaloid - big swimming predatory cephalopod Trilobites and Brachiopods - burrowing organisms
(worms too!) disrupting sediment laminations! 3rd Trilobite Mass
Extinction = End of
Cambrian Mass Extinctions over
time 4 ...
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This note was uploaded on 05/26/2011 for the course GEOL 208 taught by Professor Michaelstuart during the Spring '11 term at University of Illinois, Urbana Champaign.
- Spring '11