Time travel with insects -- The buggy planet -- Rise of the arthropods : the Cambrian period, 541-485 million years ago, and the Ordovician period, 485-444 million years ago -- Silurian landfall : the Silurian period, 444-419 million years ago -- Six feet under the moss : the Devonian period, 419-359 million years ago -- Dancing on air : the Carboniferous period, 359-299 million years ago -- Paleozoic holocaust : the Permian period, 299-252 million years ago -- Triassic spring : the Triassic period, 252-201 million years ago -- Picnicking in Jurassic park : the Jurassic period, 201-145 million years ago -- Cretaceous bloom and doom : the Cretaceous period, 145-66 million years ago -- Cenozoic reflections : the Cenozoic era, 66 million years ago to the present day -- The buggy universe hypothesis