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Precambrian Period
EVENT 1 multicellular organisms. EVENT 2 cyanobacteria living. -
Period: to
T Bottone period 3
geological timeline -
Cambrian Period
EVENT 1 Evolving of chordates. EVENT 2 formation of two continents; Gondwana and Laurentia. -
Ordovician Period
EVENT 1 jawless fish were alive. EVENT 2 formation of early terrestrial arthropods (example is a spider). -
Silurian Period
EVENT 1 first plants to make it on land. EVENT 2 early arachnids appeared. -
Devonian Period
EVENT 1 first tetrapods on Earth (land living vertebrates). EVENT 2 first seed plant appeared. -
Mississipian Period
is a subperiod in the geologic timescale or a subsystem of the geologic record. It is the earliest/lowermost of two subperiods of the Carboniferous period lasting from roughly 358.9 to 323.2 million years ago. -
Pennsylvanian Period
in the ICS geologic timescale, the younger of two subperiods (or upper of two subsystems) of the Carboniferous Period. It lasted from roughly 323.2 million years ago to 298.9 million years ago Ma -
Permian Period
The Permian period lasted from 299 to 251 million years ago* and was the last period of the Paleozoic Era. The distinction between the Paleozoic and the Mesozoic is made at the end of the Permian in recognition of the largest mass extinction recorded in the history of life on Earth. -
Triassic Period
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Jurrasic Period
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Cretaceous Period
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Paleocene Period
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Eocene Period
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Oligo Period
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Miocene
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Pilocene
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Pleistocene
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Holocene
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Anthropocene
