Breadcrumb Home Search Showing results for Language Content type Article (2) Photo (1) Slideshow (1) Article Type Article (1) Personal Perspectives (1) Topics (-) Ancient Seas (4) (-) Extinctions (4) At The Museum (2) Extinctions (2) Marine Mammals (2) Evolution (1) Plants & Algae (1) Tags Ancient sea life (2) Fossils (2) Scientific illustrations (2) Smithsonian scientists (2) Whales (2) Site Search Sort by RelevanceTitle SortAuthored on Order AscDesc Sort By RelevanceA-ZZ-ANewestOldest Article Flippers or Feet? An Extinct Mammal May Have Been Replaced By Today's Sea Cows August 2016 Read the Full Article Photo Carbonate Reef (Cretaceous Period: 145 - 65 Million Years Ago) December 2009 View Image Article Whale fossils on the mainland, and into a CT scanner May 2012 Read the Full Article Slideshow The Ocean Throughout Geologic Time, An Image Gallery September 2011 See the Full Slideshow
