Breadcrumb Home Search Showing results for Language Content type Photo (19) Article (7) Slideshow (5) Lesson Plan (2) Audio (1) Overview (1) Article Type Article (3) Personal Perspectives (2) Topics (-) Ancient Seas (35) Extinctions (11) At The Museum (5) Evolution (5) Extinctions (5) Marine Mammals (5) Climate Change (4) Sharks & Rays (3) Exploration (2) Temperature & Chemistry (2) The Seafloor (2) Deep Sea (1) Fish (1) Fishing (1) History & Cultures (1) Human Connections (1) Ice (1) Invertebrates (1) Microbes (1) Plankton (1) Recreation (1) Seabirds (1) The Anthropocene (1) Through Time (1) Tags Paleobiology (12) Scientific illustrations (10) Fossils (9) Geologic periods (8) Ancient sea life (6) Smithsonian scientists (6) Mussels, Oysters & Relatives (5) Whales (5) National Museum of Natural History (4) Adaptations (3) Feeding (3) Geology (3) Climate Change (2) Smithsonian collections (2) Site Search Sort by RelevanceTitle SortAuthored on Order AscDesc Sort By RelevanceA-ZZ-ANewestOldest Audio Ediacaran Fossils: One Species at a Time October 2011 Listen to the Audio Photo Petrel Bones Help Us Understand History May 2013 View Image Photo The Ancient Shark Falcatus falcatus August 2014 View Image Photo A Mississippian Marine Habitat (359 - 318 Million Years Ago) September 2011 View Image Overview Sea Level Rise April 2016 Read the Full Overview Slideshow A Collection of Cambrian Fossils October 2013 See the Full Slideshow Photo Opabinia August 2013 View Image Photo A Tooth Left Behind July 2018 View Image Photo Haplophrentis carinatus August 2013 View Image Photo An Ichthyosaur Jaw Bone December 2022 View Image Photo Squalicorax Shark Fossil August 2014 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 Next page