Contact: Deborah Williams-Hedges
debwms@caltech.edu
626-395-3227
California Institute of Technology

Marine Fossils from the Late Ordovician

Caption: These are bedding surfaces covered in marine invertebrate fossils from the Late Ordovician (Ellis Bay Formation, Anticosti Island, Québec, Canada). Anticosti Island preserves one of the most fossiliferous and stratigraphically complete records through the Late Ordovician Mass Extinction in North America.

Credit: Caltech

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