Breadcrumb Home Search Showing results for Language Content type Photo (5) Article (4) Slideshow (4) Lesson Plan (1) Overview (1) Video (1) Article Type Personal Perspectives (2) Article (1) Topics (-) Ancient Seas (16) Evolution (5) Extinctions (4) Extinctions (4) At The Museum (3) Climate Change (3) Invertebrates (2) Marine Mammals (2) The Anthropocene (2) Coral Reefs (1) Exploration (1) Human Connections (1) Ice (1) Plankton (1) Shifting Baselines (1) Temperature & Chemistry (1) The Seafloor (1) Through Time (1) Tags Paleobiology (8) Mussels, Oysters & Relatives (6) Ancient sea life (5) Fossils (5) Geologic periods (5) Scientific illustrations (5) Adaptations (3) Corals (3) National Museum of Natural History (3) Climate Change (2) Feeding (2) Scientists at work (2) Smithsonian scientists (2) Whales (2) Site Search Sort by RelevanceTitle SortAuthored on Order AscDesc Sort By RelevanceA-ZZ-ANewestOldest Photo Carbonate Reef (Cretaceous Period: 145 - 65 Million Years Ago) December 2009 View Image Slideshow Rudist Reefs December 2009 See the Full Slideshow Lesson Plan The Methane Circus November 2009 Read the Full Overview Video Coral Reefs Changing Over Time August 2013 Watch the Video Article Long Before Coral, Mollusks Built the Ocean's Reefs December 2009 Read the Full Article Slideshow The Ocean Throughout Geologic Time, An Image Gallery September 2011 See the Full Slideshow Photo Archaeocyatha August 2013 View Image Slideshow Foraminifera March 2010 See the Full Slideshow Photo Rudist Clams January 2010 View Image Article Dispatches from the Field: Treacherous stream crossings and a new fossil find May 2012 Read the Full Article Slideshow A Collection of Cambrian Fossils October 2013 See the Full Slideshow Article Whale fossils on the mainland, and into a CT scanner May 2012 Read the Full Article Pagination Current page 1 Page 2 Next page