Breadcrumb Home Search Showing results for Language Content type Photo (29) Article (4) Video (2) Overview (1) Article Type Article (4) Topics (-) Through Time (36) Ancient Seas (3) At The Museum (3) Careers (2) Climate Change (2) Evolution (2) Human Connections (2) Invertebrates (2) Exploration (1) Ice (1) Poles (1) Reptiles (1) Sharks & Rays (1) Temperature & Chemistry (1) Tags Ancient sea life (4) Fossils (4) Paleobiology (3) Smithsonian scientists (3) Apex predator (2) Arctic (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 Photo Paleozoic Timeline May 2019 View Image Photo Mesozoic Timeline May 2019 View Image Photo The Lace Crab May 2019 View Image Photo The Burgess Shale April 2019 View Image Photo Triassic Shallows April 2019 View Image Photo A Silurian Reef April 2019 View Image Photo Kelp Forest of the Neogene April 2019 View Image Photo Plesiosaur on the Hunt April 2019 View Image Photo Jurassic Lagoon April 2019 View Image Photo Xiphactinus April 2019 View Image Photo The Cephalopods' Hideout April 2019 View Image Photo Carboniferous Sharks April 2019 View Image Pagination Previous page Page 1 Current page 2 Page 3 Next page