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event #6 Precambrian time
Himalayas develop due to uplifting caused by the Indian subcontinent an Eurasian continents colliding. -
event #8 Precambrian time
Appalachian Mountains are created because of the collision of tectonic plates & savannah form. -
event #30 Cambrian
Colonies of tiny invertebrates call graptolites flourished and vertebrates appear, fish did not have jaws or teeth and their bodies were covered with bony plates. -
event #37 Cambrian
Age of fishes, fish that can breath out of water and spend time on land form. -
event #1 Silurian
There is very little plant life during this period. -
event #24 Silurian
Eurypterids (sea scorpions), sea stars and coral become more common. -
event #2 Mississippian period
Swamps and forests cover the land. -
event #31 Mississippian period
Huge plants begin to develop, early amphibians form. -
event #4 Pennsylvanian period
Giant cockroaches appear. -
event #15 Pennsylvanian period
Coal deposits form. -
event #16 Triassic
Welcome to the world of the Dinosaur! Enter the squirrel sized dinosaur & the first forest dwelling mammals appear. -
event #5 Cretaceous
First flowering plants appear - angiosperm -
event #34 Triassic
Ichthyosaurs are living in the ocean, new invertebrates call ammonite develop. -
event #13 Jurassic
Whoa those dins are getting big & dominate the land - Lizard- hipped and bird-hipped appear - carnivores and herbivores have arrived. -
event #3 Jurassic
Flying reptiles called pterosaurs are in the air now. -
event #35 Cretaceous
Impact hypothesis - dinosaur mass extinction -
event #17 Eocene
Flying squirrels, whales and bats appear. -
event #26 Eocene
First modern horses appears. -
event #9 Holocene
Homosapien (modern humans) appeared & are hunters.
