Proteimeran Eon

Part of the Terrestrial Geologic Timescale

Theochronic Eon - Proteimeran Eon - Hadean Eon

The Proteimeran Eon is a relatively recent addition to the timescale, having been proposed by Goldblatt et al. as the Prenephelean Eon in 2010 and not having been subdivided or formally termed an eon. However, it is no longer the earliest eon on the timescale, being preceded by the Theochronic Eon due to recent studies that suggest that an older universe collapsed, giving rise to the current one, and that multiple universes may currently exist.

The Proteimeran begins with the Big Bang phase of the Big Bounce (see Theochronic Eon), and continues until the formation of the proto-Earth, now known as Tellus. The Proteimeran includes the development of the (current) universe, the Milky Way (as well as most other galaxies), and the solar system (as well as the various other planetary systems now known to exist).

The Proteimeran is subdivided into three eras: the Paleoproteimeran, the Mesoproteimeran, and the Neoproteimeran.

Prechaotian Timescale:

Proteimeran Eon - 13798-4568 MYA

-Paleoproteimeran Era - 13798-13550 MYA

--Precelestial Period - 13798-13600 MYA

--Paleocelestial Period - 13600-13550 MYA

-Mesoproteimeran Era - 13550-4680 MYA

--Eogalactic Period - 13550-13200 MYA

--Neogalactic Period - 13200-4680 MYA

-Neoproteimeran Era - 4680-4568 MYA

--Nephelean Period - 4680-4630 MYA

--Erebrean Period - 4630-4568 MYA