Breadcrumb Home Search Showing results for Language Content type Photo (24) Article (21) Slideshow (6) Lesson Plan (3) Audio (1) Overview (1) Video (1) Article Type Personal Perspectives (9) Article (8) Topics (-) Ancient Seas (57) Extinctions (22) At The Museum (15) Marine Mammals (13) Evolution (12) Extinctions (6) Climate Change (5) Invertebrates (4) History & Cultures (3) Sharks & Rays (3) Temperature & Chemistry (3) Through Time (3) Careers (2) Exploration (2) Fishing (2) Reptiles (2) Seabirds (2) The Anthropocene (2) The Seafloor (2) Deep Sea (1) Fish (1) Food Web (1) Human Connections (1) Ice (1) Microbes (1) Plankton (1) Plants & Algae (1) Recreation (1) Seafood (1) Shifting Baselines (1) Tags Fossils (22) Paleobiology (19) Ancient sea life (16) Smithsonian scientists (15) National Museum of Natural History (11) Whales (11) Geologic periods (9) Scientific illustrations (7) Scientists at work (7) Adaptations (6) Mussels, Oysters & Relatives (5) Feeding (4) New discoveries (4) Manatees & Dugongs (3) News (3) Sharks (3) Smithsonian collections (3) Chemistry (2) Climate Change (2) Fisheries (2) Geology (2) Maritime history (2) Native people (2) NOAA (2) Seagrass (2) Smithsonian Tropical Research Institute (2) Technology (2) Women in Science (2) Site Search Sort by RelevanceTitle SortAuthored on Order AscDesc Sort By RelevanceA-ZZ-ANewestOldest Photo A Mississippian Marine Habitat (359 - 318 Million Years Ago) September 2011 View Image Photo Cambrian Period (542 – 488 Million Years Ago) September 2011 View Image Audio Ediacaran Fossils: One Species at a Time October 2011 Listen to the Audio Photo Carbonate Reef (Cretaceous Period: 145 - 65 Million Years Ago) December 2009 View Image Article Long Before Coral, Mollusks Built the Ocean's Reefs December 2009 Read the Full Article Article Keeping An Ear Out For Whale Evolution March 2015 Read the Full Article Slideshow Foraminifera March 2010 See the Full Slideshow Article Whale fossils on the mainland, and into a CT scanner May 2012 Read the Full Article Article Unearthing History: Mary Anning's Hunt for Prehistoric Ocean Giants March 2016 Read the Full Article Pagination Previous page Page 1 Page 2 Page 3 Page 4 Current page 5