The Paleoarchean (/ˌpeɪlioʊ.ɑːrˈkiːən, ˌpæl-/ PAY-lee-oh-ar-KEE-ən, PAL-), also spelled Palaeoarchaean (formerly known as the early Archean), is a geologic...

million years, from the end of the Hadean Eon 4031 Mya to the start of the Paleoarchean Era 3600 Mya. The beginnings of life on Earth have been dated to this...

ago, and the Eoarchean, starting 4 billion years ago, and part of the Paleoarchean era, starting 3.6 billion years ago, of the Archean eon. This period...

(one of the earliest forms of life on Earth) have been dated to the Paleoarchean era approximately 3.5 billion years ago. Marble Bar has been described...

Archean Eon (2.5–4 Ga) Neoarchean (2.5–2.8 Ga) Mesoarchean (2.8–3.2 Ga) Paleoarchean (3.2–3.6 Ga) Eoarchean (3.6–4 Ga) Hadean Eon (4–4.6 Ga)   ka = kiloannum...

chronostratigraphic erathem. There are ten defined eras: the Eoarchean, Paleoarchean, Mesoarchean, Neoarchean, Paleoproterozoic, Mesoproterozoic, Neoproterozoic...

Archean Eon (2.5–4 Ga) Neoarchean (2.5–2.8 Ga) Mesoarchean (2.8–3.2 Ga) Paleoarchean (3.2–3.6 Ga) Eoarchean (3.6–4 Ga) Hadean Eon (4–4.6 Ga)   ka = kiloannum...

Precambrian Hadean (or hadaeozoic) Archean (or archaeozoic) Eoarchean Paleoarchean Mesoarchean Neoarchean Proterozoic Paleoproterozoic Siderian Rhyacian...

Kaapval craton begins: old tonaltic gneisses laid down c. 3,600 Ma – Paleoarchean Era starts. Possible assembly of the Vaalbara supercontinent; oldest...

Archaea Temporal range: 3420–0 Ma Pha. Proterozoic Archean Had. Paleoarchean – present Scientific classification Domain: Archaea Woese, Kandler & Wheelis...