Statherian

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The Statherian ( /stəˈθɪəriən/; Greek: statheros, meaning "stable, firm") is the final geologic period in the Paleoproterozoic Era and lasted from 1800 Mya to 1600 Mya (million years ago). Instead of being based on stratigraphy, these dates are defined chronometrically.

The period is characterized on most continents by either new platforms or final cratonization of fold belts.

The supercontinent Columbia formed at the beginning of this period.

[edit] References

"Statherian Period". GeoWhen Database. Archived from the original on May 12, 2006. http://web.archive.org/web/20060512043023/http://www.stratigraphy.org/geowhen/stages/Statherian.html. Retrieved January 5, 2006.
James G. Ogg (2004). "Status on Divisions of the International Geologic Time Scale". Lethaia 37 (2): 183–199. DOI:10.1080/00241160410006492.

Preceded by Archean Eon	2.5 Ga - Proterozoic Eon - 542 Ma										Followed by Phanerozoic Eon
	2.5 Ga - Paleoproterozoic Era - 1.6 Ga				1.6 Ga - Mesoproterozoic Era - 1.0 Ga			1.0 Ga - Neoproterozoic Era - 542 Ma
	Siderian	Rhyacian	Orosirian	Statherian	Calymmian	Ectasian	Stenian	Tonian	Cryogenian	Ediacaran

Geologic history of Earth

Precambrian (4.57 Gya – 542 Mya)

In left column are eons; right column: bold are eras; not bold are periods:

Hadean (4.57 – 4 Gya)	(informal)

Archean (4 – 2.5 Gya)	Eoarchean (4 – 3.6 Gya) Paleoarchean (3.6 – 3.2 Gya) Mesoarchean (3.2 – 2.8 Gya) Neoarchean (2.8 – 2.5 Gya)

Proterozoic (2.5 Gya – 542 Mya)	Paleoproterozoic (2.5 – 1.6 Gya): Siderian (2.5 – 2.3 Gya) · Rhyacian (2.3 – 2.05 Gya) · Orosirian (2.05 – 1.8 Gya) · Statherian (1.8 – 1.6 Gya) Mesoproterozoic (1.6 – 1 Gya): Calymmian (1.6 – 1.4 Gya) · Ectasian (1.4 – 1.2 Gya) · Stenian (1.2 – 1 Gya) Neoproterozoic (1 Gya – 542 Mya): Tonian (1 Gya – 850 Mya) · Cryogenian (850 – 635 Mya) · Ediacaran (635 – 542 Mya)

Mya = millions years ago. Gya = billions years ago.

Phanerozoic (542 – 0 Mya)

In horizontal bars are eras; in left column are periods; right column: bold are epochs; not bold not italic are ages; italic are chrons:

Paleozoic (542 – 251 Mya)

Cambrian (542 – 488.3 Mya)	Terreneuvian (542 – 521 Mya) (de): Fortunian (542 – 528 Mya) (de) · Age 2* (528 – 521 Mya) *Epoch 2 (521 – 510 Mya)*: Age 3 (521 – 515 Mya) · Age 4* (515 – 510 Mya) *Epoch 3 (510 – 499 Mya)*: Age 5 (510 – 506.5 Mya) · Drumian (506.5 – 503 Mya) (de) · Guzhangian (503 – 499 Mya) (de) Furongian (499 – 488.3 Mya): Paibian (499 – 496 Mya) · Jiangshanian (496 – 492 Mya) (de) · Age 10* (492 – 488.3 Mya)

Ordovician (488.3 – 443.7 Mya)	Early Ordovician (488.3 – 471.8 Mya): Tremadocian (488.3 – 478.6 Mya) · Floian (478.6 – 471.8 Mya) Middle Ordovician (471.8 – 460.9 Mya): Dapingian (471.8 – 468.1 Mya) · Darriwilian (468.1 – 460.9 Mya) Late Ordovician (460.9 – 443.7 Mya): Sandbian (460.9 – 455.8 Mya) · Katian (455.8 – 445.6 Mya) · Hirnantian (445.6 – 443.7 Mya)

Silurian (443.7 – 416 Mya)	Llandovery (443.7 – 428.2 Mya): Rhuddanian (443.7 – 439 Mya) · Aeronian (439 – 436 Mya) · Telychian (436 – 428.2 Mya) Wenlock (428.2 – 422.9 Mya): Sheinwoodian (428.2 – 426.2 Mya) · Homerian (426.2 – 422.9 Mya) Ludlow (422.9 – 418.7 Mya): Gorstian (422.9 – 421.3 Mya) · Ludfordian (421.3 – 418.7 Mya) Pridoli (418.7 – 416 Mya)

Devonian (416 – 359.2 Mya)	Early Devonian (416 – 397.5 Mya): Lochkovian (416 – 411.2 Mya) · Pragian (411.2 – 407 Mya) · Emsian (407 – 397.5 Mya) Middle Devonian (397.5 – 385.3 Mya): Eifelian (397.5 – 391.8 Mya) · Givetian (391.8 – 385.3 Mya) Late Devonian (385.3 – 359.2 Mya): Frasnian (385.3 – 374.5 Mya) · Famennian (374.5 – 359.2 Mya)

Carboniferous (359.2 – 299 Mya)	Mississippian (359.2 – 318.1 Mya): Tournaisian / Early Mississippian (359.2 – 345.3 Mya) · Viséan / Middle Mississippian (345.3 – 328.3 Mya) · Serpukhovian / Late Mississippian (328.3 – 318.1 Mya) Pennsylvanian (318.1 – 299 Mya): Bashkirian / Early Pennsylvanian (318.1 – 311.7 Mya) · Moscovian / Middle Pennsylvanian (311.7 – 307.2 Mya) · Late Pennsylvanian (307.2 – 299 Mya): Kasimovian (307.2 – 303.4 Mya) · Gzhelian (303.4 – 299 Mya)

Permian (299 – 251 Mya)	Cisuralian (299 – 270.6 Mya): Asselian (299 – 294.6 Mya) · Sakmarian (294.6 – 284.4 Mya) · Artinskian (284.4 – 275.6 Mya) · Kungurian (275.6 – 270.6 Mya) Guadalupian (270.6 – 260.4 Mya): Roadian (270.6 – 268 Mya) · Wordian (268 – 265.8 Mya) · Capitanian (265.8 – 260.4 Mya) Lopingian (260.4 – 251 Mya): Wuchiapingian (260.4 – 253.8 Mya) · Changhsingian (253.8 – 251 Mya)

Mesozoic (251 – 65.5 Mya)

Triassic (251 – 199.6 Mya)	Early Triassic (251 – 245.9 Mya): Induan (251 – 249.5 Mya) · Olenekian (249.5 – 245.9 Mya) Middle Triassic (245.9 – 228.7 Mya): Anisian (245.9 – 237 Mya) · Ladinian (237 – 228.7 Mya) Late Triassic (228.7 – 199.6 Mya): Carnian (228.7 – 216.5 Mya) · Norian (216.5 – 203.6 Mya) · Rhaetian (203.6 – 199.6 Mya)

Jurassic (199.6 – 145.5 Mya)	Early Jurassic (199.6 – 175.6 Mya): Hettangian (199.6 – 196.5 Mya) · Sinemurian (196.5 – 189.6 Mya) · Pliensbachian (189.6 – 183 Mya) · Toarcian (183 – 175.6 Mya) Middle Jurassic (175.6 – 161.2 Mya): Aalenian (175.6 – 171.6 Mya) · Bajocian (171.6 – 167.7 Mya) · Bathonian (167.7 – 164.7 Mya) · Callovian (164.7 – 161.2 Mya) Late Jurassic (161.2 – 145.5 Mya): Oxfordian (161.2 – 155.6 Mya) · Kimmeridgian (155.6 – 150.8 Mya) · Tithonian (150.8 – 145.5 Mya)

Cretaceous (145.5 – 65.5 Mya)	Early Cretaceous (145.5 – 99.6 Mya): Berriasian (145.5 – 140.2 Mya) · Valanginian (140.2 – 133.9 Mya) · Hauterivian (133.9 – 130 Mya) · Barremian (130 – 125 Mya) · Aptian (125 – 112 Mya) · Albian (112 – 99.6 Mya) Late Cretaceous (99.6 – 65.5 Mya): Cenomanian (99.6 – 93.6 Mya) · Turonian (93.6 – 88.6 Mya) · Coniacian (88.6 – 85.8 Mya) · Santonian (85.8 – 83.5 Mya) · Campanian (83.5 – 70.6 Mya) · Maastrichtian (70.6 – 65.5 Mya)

Cenozoic (65.5 – 0 Mya)

Paleogene, Neogene and early Pleistocene comprise former Tertiary* (65.5 – 1.8 Mya) period. Gelasian and Calabrian comprise Early Pleistocene (2.588 Mya – 781 kya) subepoch.

Paleogene (65.5 – 23.03 Mya)	Paleocene (65.5 – 55.8 Mya): Danian (65.5 – 61.1 Mya) · Selandian (61.1 – 58.7 Mya) · Thanetian (58.7 – 55.8 Mya) Eocene (55.8 – 33.9 Mya): Ypresian (55.8 – 48.6 Mya) · Lutetian (48.6 – 40.4 Mya) · Bartonian (40.4 – 37.2 Mya) · Priabonian (37.2 – 33.9 Mya) Oligocene (33.9 – 23.03 Mya): Rupelian (33.9 – 28.4 Mya) · Chattian (28.4 – 23.03 Mya)

Neogene (23.03 – 2.588 Mya)	Miocene (23.03 – 5.332 Mya): Aquitanian (23.03 – 20.43 Mya) · Burdigalian (20.43 – 15.97 Mya) · Langhian (15.97 – 13.82 Mya) · Serravallian (13.82 – 11.608 Mya) · Tortonian (11.608 – 7.246 Mya) · Messinian (7.246 – 5.332 Mya) Pliocene (5.332 – 2.588 Mya): Piacenzian (5.332 – 3.6 Mya) · Zanclean (3.6 – 2.588 Mya)

Quaternary (2.588 – 0 Mya)	Pleistocene (2.588 Mya – 11.4 kya): Gelasian (2.588 – 1.806 Mya) · Calabrian (1.806 Mya – 781 kya) · Middle Pleistocene / Ionian (781 – 126 kya) · Late Pleistocene / Tarantian (126 – 11.4 kya): Oldest Dryas (18 – 14.67 kya) · Bølling* (14.67 – 14 kya) · Older Dryas* (14 – 13.7 kya) · Allerød* (13.7 – 12.8 kya) · Younger Dryas* (12.8 – 11.4 kya)* Holocene (11.4 – 0 kya): Preboreal (11.4 – 9 kya) · Boreal* (9 – 8 kya) · Atlantic* (8 – 5 kya) · Subboreal* (5 – 2.5 kya) · Subatlantic* (2.5 – 0 kya)*