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A matter of time; sedimentary environments - ancient and modern; the fossil record; fossils and evolution; rocks and time; real-time dating in geology; origins - the Earth and life; plate tectonics; te new uniformitarianism; the Archean; the Proterozoic; the Cambrian world and an evolutionary explosion; the Ordovician-Silurian - the water planet; te Devonian - the great invasion; the Carboniferous; the Permian; the Triassic and Jurassic; the Cretaceous; the Paleogene; the Neogene. (Part contents).