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Precambian Time Event #6
Himalayas develop due to uplifting caused by the Indian subcontinent and Eurasian continents colliding -
Precambian Time Event #38
Earth forms; continental shields appear; fossils are rare; cyanobacteria are the most common organism -
Period: to
LZ p6
Geological Timescale -
Cambrian Period Event #23
Shelled barchiopods appear -
Cambrain Period Event #22
Trilobites appear -
Devonian Event #37
Age of Fishes, fish that can breath out of the water and spend time on land form -
Devonian Event #31
Huge plants begin to develop, early amphibians form -
Siluran Event #24
Eurypterids (sea scorpions), sea stars and coral become more common -
Silurian Event #33
Vascular land plants and animals, such as scorpions begin to evolve on land -
Ordovican Period Event #30
Colonies of tiny invertebrates called graptolites flourished and vertibrates appear, Fish did not have jaws or teeth and their bodies were covered with bony plates. -
Ordovican Period Event # 4
Echinoderms appear; brachiopods increase; trilobites decline; graptolites flourish. -
Carboniferous Period Event #15
Coal deposits form -
Carboniferous Event #31
Amphibians appear -
Mississipian Period Event #2
swamps and forests cover the land -
Mississpian Event #11
dragon flies are common -
Pensylvanian period Event #4
Giant cockroaches appear. -
Pensylvanian Event #23
Brachiopods are common in the ocean -
Permain Event #8
Appalachian Mountains are created because of collision of tectonic plates and savannahs form. -
Permain Event #2
last period of the Paleozoic era -
Triassic Event #16
Welcome to the world of the Dinosaur! Enter the squirrel sized dinosaur and the first forest dwelling mammals appear. -
Triassic Event #34
Ichthyosaurs are living in the ocean, new invertebrates call ammonite develop. -
Jurassic Event #3
Flying reptiles called pterosaurs are in the air now -
Jurassic Event #13
Whoa those dinos are getting big and dominating the land - Lizards hipped and bird-hipped appear - carnivores and herbivores have arrived -
Cretaceous Event #5
First flowering plants appear - angiosperm -
Cretaceous Event #1
There is very little plant life during this period -
Paleocene Event #12
first primates evolve -
Paleocene Event #9
Homosapiens (modern humans) appeared and hunters -
Eocene Event #17
Flying squirrels, whales, and bats appear. -
Eocene Event #26
First modern horses appear. -
Holocene Event #19
The last glacial period ended and sea levels rose, Great Lakes formed -
Holocene Event #7
Some scientists believe that human kind has caused mass extinctions of plant and animal species, polluted the oceans and altered the atmosphere -
Miocene Event # 20
Species that did not evolve to survive extreme cold moved to warmer climate areas or become extinct ( dire wolf and ground sloth ) -
Miocene Event #18
Species migrated between continents across land bridges
