Time periods of Earth history.

       Below is a list of the commonly used eras that are used to identify differing stages in the planet Earth’s history.‭ ‬While this list has been updated to be as accurate as possible,‭ ‬it should be born in mind that some of these dates are considered approximate and may vary by a few hundred thousand years either way.‭ ‬In addition to this,‭ ‬as new techniques are utilised,‭ ‬studies are conducted and our understanding increases,‭ ‬then these temporal boundaries may in the future be redefined and altered to how they appear below.‭ ‬In addition to this,‭ ‬alternative names for some of these periods are also sometimes used,‭ ‬but these below are the most universally common.

Cenozoic	Quaternary	Holocene	(0-0.0117 Mya)
"	"	Pleistocene	(U) Tarantian (0.0117-0.126 Mya)
"	"	"	(M) Ionian (0.126-0.781 Mya)
"	"	"	(L) Calabrian (0.781-1.806 Mya)
"	"	"	(L) Gelasian (1.806-2.588 Mya)
"	Neogene	Pliocene	Piacenzian (2.588-3.6 Mya)
"	"	"	Zanclean (3.6-5.332 Mya)
"	"	Miocene	Messinian (5.332-7.246 Mya)
"	"	"	Tortonian (7.246-11.608 Mya)
"	"	"	Serravallian (11.608-13.65 Mya)
"	"	"	Langhian (13.65-15.97 Mya)
"	"	"	Burdigalian (15.97-20.43 Mya)
"	"	"	Aquitanian (20.43-23.03 Mya)
"	Paleogene	Oligocene	Chattian (23.03-28.1 Mya)
"	"	"	Rupelian (28.1-33.9 Mya)
"	"	Eocene	Priabonian (33.9-38 Mya)
"	"	"	Bartonian (38-41.3 Mya)
"	"	"	Lutetian (41.3-47.8 Mya)
"	"	"	Ypresian (47.8-56 Mya)
"	"	Paleocene	Thanetian (56-59.2 Mya)
"	"	"	Selandian (59.2-61.6 Mya)
"	"	"	Danian (61.6-66 Mya)
Mesozoic	Cretaceous	Upper	Maastrichtian (66-72.1 Mya)
"	"	"	Campanian (72.1-83.6 Mya)
"	"	"	Santonian (83.6-86.3 Mya)
"	"	"	Coniacian (86.3-89.8 Mya)
"	"	"	Turonian (89.8-93.9 Mya)
"	"	"	Cenomanian (93.9-100.5 Mya)
"	"	Lower	Albian (100.5-113 Mya)
"	"	"	Aptian (113-125 Mya)
"	"	"	Barremian (125-129.4 Mya)
"	"	"	Hauterivian (129.4-132.9 Mya)
"	"	"	Valanginian (132.9-139.8 Mya)
"	"	"	Berriasian (139.8-145 Mya)
"	Jurassic	Upper	Tithonian (145-152.1 Mya)
"	"	"	Kimmeridgian (152.1-157.3 Mya)
"	"	"	Oxfordian (157.3-163.5 Mya)
"	"	Middle	Callovian (163.5-166.1 Mya)
"	"	"	Bathonian (166.1-168.3 Mya)
"	"	"	Bajocian (168.3-170.3 Mya)
"	"	"	Aalenian (170.3-174.1 Mya)
"	"	Lower	Toarcian (174.1-182.7 Mya)
"	"	"	Pliensbachian (182.7-190.8 Mya)
"	"	"	Sinemurian (190.8-199.3 Mya)
"	"	"	Hettangian (199.3-201.3 Mya)
"	Triassic	Upper	Rhaetian (201.3-208.5 Mya)
"	"	"	Norian (208.5-228 Mya)
"	"	"	Carnian (228-235 Mya)
"	"	Middle	Ladinian (235-242 Mya)
"	"	"	Anisian (242-247.2 Mya)
"	"	Lower	Olenekian (247.2-251.2 Mya)
"	"	"	Induan (251.2-252.2 Mya)
Palaeozoic	Permian	Lopingian	Changhsingian (251-253.8 Mya)
"	"	"	Wuchiapingian (253.8-260.4 Mya)
"	"	"	Capitanian (260.4-265.8 Mya)
"	"	Guadalupian	Wordian (265.8-268 Mya)
"	"	"	Roadian (268-270.6 Mya)
"	"	Cisuralian	Artinskian (275.6-284.4 Mya)
"	"	"	Sakmarian (284.4-294.6 Mya)
"	"	"	Asselian (294.6-299 Mya)
"	Carboniferous	Pennsylvanian	Gzhelian (299-303.9 Mya)
"	"	"	Kasimovian (303.9-306.5 Mya)
"	"	"	Moscovian (306.5-311.7 Mya)
"	"	"	Bashkirian (311.7-318.1 Mya)
"	"	Mississippian	Serpukhovian (318.1-328.3 Mya)
"	"	"	Visean (328.3-345.3 Mya)
"	"	"	Tournaisian (345.3-359.2 Mya)
"	Devonian	Upper	Famennian (359.2-374.5 Mya)
"	"	"	Frasnian (374.5-385.3 Mya)
"	"	Middle	Givetian (385.3-391.8 Mya)
"	"	"	Eifelian (391.8-397.5 Mya)
"	"	Lower	Emsian (397.5-407 Mya)
"	"	"	Pragian (407-411.2 Mya)
"	"	"	Lochkovian (411.2-416 Mya)
"	Silurian	Upper	Pridoli (416-418.7 Mya)
"	"	Middle	Ludlow (418.7-422.9 Mya)
"	"	"	Wenlock (422.9-428.2 Mya)
"	"	Lower	Llandovery (428.2-443.7 Mya)
"	Ordovician	Upper	Hirnantian
"	(443.7-488.3 mya)		Katian
"	"	"	Sandbian
"	"	Middle	Darriwilian
"	"	"	Dapingian
"	"	Lower	Floian
"	"	"	Tremadocian
"	Cambrian	Upper	Stage 10 (488.3-499 mya)
"	(488.3-542 mya)	"	Stage 9
"	"	"	Paibian
"	"	Middle	Dresbachian
"	"	"	Drumian
"	"	"	Stage 5
"	"	Lower	Toyonian
"	"	"	Botomian
"	"	"	Atdabanian
"	"	"	Tommotian
"	"	"	Nemakit-Daldynian
Proterozoic	Neoproterozoic	Ediacaran (542-635 Mya)
"	"	Cryogenian (635-850 Mya)
"	"	Tonian (850-1000 Mya)
"	Mesoproterozoic	Stenian (1000-1200 Mya)
"	"	Ectasian (1200-1400 Mya)
"	"	Calymmian (1400-1600 Mya)
"	Paleoproterozoic	Statherian (1600-1800 Mya)
"	"	Orosirian (1800-2050 Mya)
"	"	Rhyacian (2050-2300 Mya)
"	"	Siderian (2300-2500 Mya)
Archean	Neoarchean (2500-2800 Mya)
"	Paleoarchean (2800-3200 Mya)
"	Mesoarchean (3200-3600 Mya)
"	Neoarchean (3600-3800 Mya)
Hadean (3800-4600 Mya)