the current eon period is pleistocene period
We currently live in the Phanerozoic eon, which began around 541 million years ago and is marked by the diversification of multicellular life. The Phanerozoic eon is divided into three eras: the Paleozoic, Mesozoic, and Cenozoic.
We currently live in the Holocene Epoch of the Quaternary Period of the Cenozoic Era of the Phanerozoic Eon.
5th Edit: The ancient Greeks referred to an eon as being an eternity, so by that definition, we would be in the one and only eon, but in geology, an eon amounts to about 1 billion years, making the Earth be 4.6 eons old, so, the answer would either be the first eon, or the 5th eon. Depends on how you look at it.
The eon it lived in is the Phanerozoic, but I really don't believe that's what you're asking. It lived in the early Jurassic period of the Mesozoic era.
archean eon
Eon: Phanerozoic Era: Mesozoic Period: Late Jurassic to Early Cretaceous Time range: 155 to 140 million years ago
I don't know the plural of eon but the answer is more than 1 eon
I am currently in the Phanerozoic Eon.
the Hadean eon
Paleozoic eon
It was in the Phanerozoic Eon.