A major extinction, the Kellwasser event, occurred at the boundary that marks the beginning of the last phase of the Devonian period, the Famennian faunal stage (the Frasnian–Famennian boundary), about 375–360 million years ago.
Overall, 19% of all families and 50% of all genera became extinct.
Ions can be created, by either chemical or physical means, via ionization. Theia collided with another planetary-mass object, Gaia (the early Earth) around 4.51 billion years ago.
GN-z11 high-redshift galaxy found in the constellation Ursa Major, and is currently the oldest and most distant known galaxy in the observable universe - 13.4 billion years old. That was when the Moon Formed, the Moon was twice as close then it is now causing 10,000 ft. Age of the Earth is approximately 4.54 ± 0.05 billion years (4.54 × 109 years ± 1%).
Paleozoic is the earliest of three geologic eras of the Phanerozoic Eon.
It is the longest of the Phanerozoic eras, lasting from 541 to 251.902 million years ago, Phanerozoic covers 541 million years to the present.
We might have even less time if we don't start making improvements. New type of Green Algae produced O2, which created the Ozone Layer that protected life from damaging UV Rays and gave life a chance to progress.
(1.5 Billion Years since the Birth of Earth) - 2.4 billion years ago, oxygen in the atmosphere suddenly increased by about 10,000 times in just 200 million years.
By 600 million years ago, the oxygen in the atmosphere reached about one-fifth of today’s level (21 percent).
(3.9 Billion Years since the Birth of Earth, and 2.9 Billion Years since Microorganisms Formed) Multicellular Organisms appear that consist of more than one cell, in contrast to unicellular organisms, which is an organism that consists of only one cell. Multicellularity has evolved independently at least 46 times. Snowball Earth Choanoflagellate are a group of free-living unicellular and colonial flagellate eukaryotes considered to be the closest living relatives of the animals.