-
end of the last Ice Age; rise of human civilization
-
Ice Age; mass extinctions; rise of man
-
peak of mammals
-
rise of grazing mammas
-
modern insects; reptiles spread; evergreens; extinction of trilobites
-
giant insects; first reptiles
-
primitives apes; whales; first modern mammals
-
amphibians spread; sharks and bony fish; winged insects
-
earth became habitable
-
formation of earth
-
first amphibians; fresh water fish; wingless insects
-
land colonized by arthropods and plants
-
trilobites abundant; vertebrates increase
-
sudden explosion of life
-
First horses
-
Early mammals became dominant; rise of modern birds
-
mass extinctions; flowering plants appear
-
giant dinosaurs; early birds; first mammals
-
simple multicellular sea creatures develop
-
first dinosaurs; rise of mammal-like reptiles
