Increase in phyla ('explosion')
Paleozoic Era
Colonization of land
Paleozoic Era
Early vascular plants, first bony fish
Paleozoic Era
First tetrapods and insects
Paleozoic Era
Forests of vascular plants, first seed plants, reptiles and amphibians
Paleozoic Era
Most present-day insects, mass extinction at end of period
Paleozoic Era
Cone-bearing plants, first mammals and dinosaurs
Mesozoic Era
More diverse dinosaurs and gymnosperms
Mesozoic Era
Flowering plants diversify, most dinosaurs extinct at end of period
Mesozoic Era