Breadcrumb Home Search Showing results for Language Content type Article (15) Photo (14) Slideshow (5) Lesson Plan (2) Audio (1) Overview (1) Article Type Article (8) Personal Perspectives (5) Topics (-) Ancient Seas (38) Extinctions (14) At The Museum (11) Marine Mammals (10) Evolution (6) Extinctions (6) Climate Change (4) Invertebrates (3) Exploration (2) Plants & Algae (2) Reptiles (2) Temperature & Chemistry (2) Through Time (2) Careers (1) Deep Sea (1) Fish (1) History & Cultures (1) Human Connections (1) Ice (1) Microbes (1) Plankton (1) Recreation (1) Sharks & Rays (1) The Anthropocene (1) The Seafloor (1) Tags Paleobiology (17) Fossils (16) Ancient sea life (11) Smithsonian scientists (10) Geologic periods (9) Whales (9) Scientific illustrations (8) National Museum of Natural History (7) Mussels, Oysters & Relatives (5) Scientists at work (4) Manatees & Dugongs (3) New discoveries (3) News (3) Adaptations (2) Climate Change (2) Corals (2) Feeding (2) Seagrass (2) Smithsonian collections (2) Technology (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 Photo An Ichthyosaur Gravesite December 2022 View Image Photo Ammonite January 2010 View Image Slideshow Rudist Reefs December 2009 See the Full Slideshow Photo Ichthyosaur Nursery December 2022 View Image Article Form Equals Function for Ancient Sea Lizards and Modern Whales April 2019 Read the Full Article Slideshow Foraminifera March 2010 See the Full Slideshow Photo Anomalocaris canadensis August 2013 View Image Photo Scientists and Fossils August 2013 View Image Article Keeping An Ear Out For Whale Evolution March 2015 Read the Full Article Photo Globotruncana falsostuarti March 2010 View Image Article If You Build An Ocean, Sea Monsters Will Come October 2018 Read the Full Article Pagination Previous page Page 1 Current page 2 Page 3 Page 4 Next page