Breadcrumb Home Search Showing results for Language Content type Photo (6) Article (3) Slideshow (2) Article Type Article (2) Personal Perspectives (1) Topics (-) Ancient Seas (11) (-) Extinctions (11) Marine Mammals (3) At The Museum (2) Careers (1) Evolution (1) History & Cultures (1) Invertebrates (1) Plants & Algae (1) Sharks & Rays (1) Tags Fossils (5) Ancient sea life (4) Paleobiology (3) Smithsonian scientists (3) Whales (3) Algae (2) Geologic periods (2) Scientific illustrations (2) Scientists at work (2) Site Search Sort by RelevanceTitle SortAuthored on Order AscDesc Sort By RelevanceA-ZZ-ANewestOldest Photo Ediacaran Community, Proterozoic Eon (2,500 - 542 Million Years Ago) September 2011 View Image Slideshow A Collection of Cambrian Fossils October 2013 See the Full Slideshow Photo Ottoia prolifica August 2013 View Image Photo Anomalocaris canadensis August 2013 View Image Photo Wiwaxia August 2013 View Image Photo Dugong Feeding February 2012 View Image Photo Eocene Whales and Penguins Off the Coast of Peru March 2018 View Image Article The Whale Graveyard Whodunit March 2014 Read the Full Article Article New Archaeocetes from Peru Are the Oldest Fossil Whales from South America September 2011 Read the Full Article Article Unearthing History: Mary Anning's Hunt for Prehistoric Ocean Giants March 2016 Read the Full Article Slideshow Shark Ancestors December 2009 See the Full Slideshow