Plants Invertebrates Vertebrates Protists Foraminifera Diatoms Radiolarians Spores and Pollen Ciliates Other Protists Conifers and Relatives Mosses, Liverworts, Hornworts Ferns and Relatives Horsetails and Relatives Gymnosperms Ginkgoes Cycads and Relatives Angiosperms \"Progymnosperms\" Lycophytes Other Angiosperms Arthropods Insects Trilobites Other Arthropods Brachiopods Bryozoans Cnidarians Echinoderms Seastars Echinoids Crinoids Other Echinoderms Molluscs Bivalves Gastropods Cephalopods Other Molluscs Sponges Early Tetrapods Ediacaran Organisms Hemichordates and Chordates Amphibians Frogs and Toads Salamanders and Newts Caecilians Fishes Agnathans Placoderms and Acanthodians Sharks and Relatives Ray-finned Fish Lobe-finned Fish Mammal Relatives Other Mammals Mammals Placentals Marsupials Monotremes Bacteria Acritarchs Dinoflagellates Green Algae Red Algae Kelps and Brown Algae Silicoflagellates Calcareous Nannoplankton Fungi Chytrids \"Lichens\" Other Fungi Trace Fossils Invertebrate traces Vertebrate Traces Plant Traces Plant-like Fossils Unknown Traces \"Seed Ferns\" Gnetophytes Other Gymnosperms Phytoliths Dicots Monocots Early Land Plants Chelicerates Crustaceans Other Invertebrates Other Amphibians Reptiles Dinosaurs and Birds Crocodiles and Relatives Lizards, Snakes, Tuataras Turtles Extinct Marine Reptiles Other Reptiles Root