Matching Pairs Geologic Time ScaleOnline version 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. by Earth Science 1 Quarternary 2 Triassic 3 Silurian 4 Epoch 5 Era 6 Period 7 Devonian 8 Cambrian 9 Eon 10 MA first vascular land plants first mammals Jurassic Pleistocene Paleozoic First fishes and chordates first amphibians Evolution of Humans Precambrian 4000