Breadcrumb Home Search Showing results for Language Content type Photo (29) Article (4) Overview (1) Article Type Article (4) Topics (-) Through Time (34) Ancient Seas (3) At The Museum (3) Careers (2) Evolution (2) Human Connections (2) Invertebrates (2) Climate Change (1) Exploration (1) Reptiles (1) Sharks & Rays (1) Tags Ancient sea life (4) Fossils (4) Paleobiology (3) Smithsonian scientists (3) Apex predator (2) Geologic periods (2) National Museum of Natural History (2) Sea stars & Urchins (2) Sharks (2) Site Search Sort by RelevanceTitle SortAuthored on Order AscDesc Sort By RelevanceA-ZZ-ANewestOldest Article Bony Beginnings: The Rise of Vertebrate Innovation in the Devonian March 2025 Read the Full Article Photo Precambrian Timeline May 2019 View Image Photo Paleozoic Timeline May 2019 View Image Photo Carboniferous Snails April 2019 View Image Photo Megalodons Throughout the World May 2019 View Image Photo The Lace Crab May 2019 View Image Photo A Silurian Reef April 2019 View Image Photo Kelp Forest of the Neogene April 2019 View Image Photo Global Conveyer Belt August 2013 View Image Photo Carboniferous Sharks April 2019 View Image Photo Ammonoids April 2019 View Image Photo The Mesozoic Sea April 2019 View Image Pagination Previous page Page 1 Current page 2 Page 3 Next page