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Holocene
The last glacial period ended and sea levels arose. Modern human developed agriculture and used tools made of bronze and iron. -
Period: to
D Chacin P7
geological timescale -
Pleistocene
Homosapien (modern humans) appeared and are hunters. World wide temperatures drop about 4 degrees celsius (about 39.2 degrees farenheint) -
Pliocene
Nearly half of the valuable mineral deposits in the world occur in the rocks of this period. Early reptiles assembling large lizards appear. -
Miocene
Small rodents evolve -
Oligocene
Various species migrated between countries across land bridges. -
Eocene
Flying squirrels, whales and bats appear. First modern horses appear. -
Paleocene
First primates evolve -
Cretaceous
First flowering plants appear-angiosperm -
Jurrasic
Flying reptiles called pretrosaurs are in the air now. Whoa those dinnos are big -
Triassic
Welcome to the world of the dinosaur! Early reptiles resembling large lizards appear. -
Permian Period
There is very little plant life during this period. Many early mammal become extinct, clams and snails flourish. -
Silurian
Eurypterids, sea stars and coral become more common.I chtysourous are living in the ocean. -
Pennsylvanian
Giant cockroaches appear. Coal deposits form. -
Mississippian
Swamps and forests cover the land. Antarctic icecaps begin to form. -
Devonian
There is an argument as to when this epoch began. -
Ordovician
Shelled brachiopods appear. Colonies of tiny invertabrates are created. -
Cambrian
The presence of stomatolites indicates that shallow seas covered much of the earth. Trilobites appear. -
Precambrian
Himalayas develop.Appalachian mountains.
