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Brachiopods Were Common Before and After Event

Credit: Flickr.com user cobalt123 -Att Share Alike 2.0 Gen
article: The Late Ordovician Mass Extinction 		Other images from this article
Cephalopods Remained Dominant After the Event Brachiopods Were Common Before and After Event
Brachiopods Were Common Before and After Event, Flickr.com user cobalt123 -Att Share Alike 2.0 Gen