Precambrian time- 4.6-3.5 billion years ago, started with the creation of the planet and ended with an explosion. Plants and animals were most dominant during that time.
Paleozoic era- 540-248 million years ago, started when the Precambrian time ended and the Paleozoic era ended due to a mass extinction, trilobites, fish, insects, snails, invertebrates and more.
Mesozoic era- 248-65 million year ago this era began when the Paleozoic era ended, the Mesozoic era ended because of and asteroid impact, dominant animals : reptiles/dinosaurs.
Cenozoic era- 65 million years ago - today, this era began when the Mesozoic era ended and this era has not been terminated Some animals up to this present day are mammals and flowering plants, and more.
the era we are in today is the Cenozoic era, the epoch is Holocene and the period is quaternary.
Paleozoic era- 540-248 million years ago, started when the Precambrian time ended and the Paleozoic era ended due to a mass extinction, trilobites, fish, insects, snails, invertebrates and more.
Mesozoic era- 248-65 million year ago this era began when the Paleozoic era ended, the Mesozoic era ended because of and asteroid impact, dominant animals : reptiles/dinosaurs.
Cenozoic era- 65 million years ago - today, this era began when the Mesozoic era ended and this era has not been terminated Some animals up to this present day are mammals and flowering plants, and more.
the era we are in today is the Cenozoic era, the epoch is Holocene and the period is quaternary.