Relier Pairs Geologic Time ScaleVersion en ligne Direction: Match the divisions of geologic time scale on the left side with subdivisions it represents on the right side. Match also the subdivisions of period on the left side with the events on the right side. You have only 5 attempts to accomplish the activity, so be careful in answering. par Earth Science 1 Eon 2 MA 3 Epoch 4 Devonian 5 Silurian 6 Triassic 7 Era 8 Cambrian 9 Quarternary 10 Period first amphibians first vascular land plants Evolution of Humans Precambrian Pleistocene first mammals 4000 Jurassic First fishes and chordates Paleozoic