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This Concept Map, created with IHMC CmapTools, has information related to: Danielle Potter, Devonian Period first insects, Silirium Period first land plants, Triassic Period first dinnosaurs, Jurrasic Period first frogs, Cenozoic 1.8 mya - present Quaternary Period, Oligocene first grasses, Single celled organisms like algae, Pleistocene is mammoths, Cambrian Period first snail, Pleistocene is mastodons, Paleozoic 268-248 mya Permian Period, Cretaceous Period first snakes, order of life fourth Cenozoic, Single celled organisms like amoebas, Mesozoic 248-213 mya Triassic Period, Ordovician Period first sea urchins, Permian Period heyday synapsids, Jurrasic Period first birds, Cenozoic 65-1.8 mya Tertiary Period, Triassic Period first turtles