Posted: Dec 19, 2017 7:05 pm
The earliest known life forms on Earth are putative fossilized microorganisms found in hydrothermal vent precipitates.
In 2017, fossilized microorganisms, or microfossils, were announced to have been discovered in hydrothermal vent precipitates in the Nuvvuagittuq Belt of Quebec, Canada that may be as old as 4.28 billion years old, the oldest record of life on Earth, suggesting "an almost instantaneous emergence of life" after ocean formation 4.41 billion years ago, and not long after the formation of the Earth 4.54 billion years ago.
I doubt subsequent incidences of abiogenesis would get very far because of all the predatory/fit/ravenous/advanced enzymes and lifeforms. I mean talk about a babe in the woods.
https://en.wikipedia.org/wiki/Earliest_known_life_forms