Template talk:Geologic history

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Official Colors?[change source]

Should we adapt the official colors from the International Commission of stratigraphy? You can put your comment below, yes or no and/or reason for yes and no. 24.218.110.195 (talk) 21:48 08 April 2013 (UTC) 5:48pm 04/08/2013 EDT.

No, I think not: it looks good as it is. On a screen (as opposed to a wallchart) it's best not to get too fancy. Thank you very much for doing the work! Macdonald-ross (talk) 07:08, 9 April 2013 (UTC)
Here is what it'll look like with official colors. It is very similar the ones on English Wikipedia. I show it below my comment. And for here I autocollapse the table 24.218.110.195 (talk) 3:00 16 April 2013 (UTC) 11:00pm 04/15/2013 EDT.
No. The colours distract attention from where it should be, the text, to the chart. Charts should not dominate the page. It's time to leave this alone and move on. Macdonald-ross (talk) 04:40, 16 April 2013 (UTC)
I see that the color template Template:Period color was suppose to be for colors of geology (geologic time) articles. It contains the colors (code) for every geologic time including stages such as Phanerozoic ,Kimmeridgian ,Precambrian ,Cenozoic ,Tonian, Lopingian and much more. Right now no geology articles or geology templates use this excluding talk pages. In fact no articles use this template at all. 24.218.110.195 (talk) 13:14 16 April 2013 (UTC) 9:14am 04/16/2013 EDT.
NOTE:The small collapsed tables will only be seen properly if all are shown or not. 24.218.110.195 (talk) 0:38 28 April 2013 (UTC) 8:38pm 04/28/2013 EDT.
SiderianRhyacianOrosirianStatherianCalymmianEctasianStenianTonianCryogenianEdiacaranEoarchaeanPalaeoarchaeanMesoarchaeanNeoarchaeanPalaeoproterozoicMesoproterozoicNeoproterozoicPalaeozoicMesozoicCainozoicHadeanArchaeanProterozoicPhanerozoicPrecambrian
CambrianOrdovicianSilurianDevonianCarboniferousPermianTriassicJurassicCretaceousPalaeogeneNeogeneQuaternaryPalaeozoicMesozoicCainozoicPhanerozoic
PalaeoceneEoceneOligoceneMiocenePliocenePleistoceneHolocenePalaeogeneNeogeneQuaternaryCainozoic
TriassicTriassicTriassicJurassicJurassicJurassicCretaceousCretaceousTriassicJurassicCretaceousMesozoic
MississippianPennsylvanianCambrianOrdovicianSilurianDevonianCarboniferousPermianPalaeozoic
TonianCryogenianEdiacaranCambrianOrdovicianSilurianDevonianCarboniferousPermianTriassicJurassicCretaceousPalaeogeneNeogeneQuaternaryNeoproterozoicPalaeozoicMesozoicCainozoicProterozoicPhanerozoic
Precambrian
Supereon Eon Era Start
Billion
years
ago
Precambrian Proterozoic Palaeoproterozoic 2.5
Archaean Neoarchaean 2.8
Mesoarchaean 3.2
Palaeoarchaean 3.6
Eoarchaean 4
Hadean 4.567
Phanerozoic
Eon Era Period Start
Million
years
ago
Phanerozoic Cainozoic Quaternary 2.588
Tertiary Neogene 23.03
Palaeogene 66
Mesozoic Cretaceous 145
Jurassic 201.3
Triassic 252.17
Palaeozoic Permian 298.9
Carboniferous 358.9
Devonian 419.2
Silurian 443.4
Ordovician 485.4
Cambrian 541
Proterozoic Neoproterozoic Ediacaran 635
Proterozoic
Supereon Eon Era Period Start
Billion
years
ago
Phanerozoic Palaeozoic Cambrian 0.541
Precambrian Proterozoic Neoproterozoic Ediacaran 0.635
Cryogenian 0.85
Tonian 1
Mesoproterozoic Stenian 1.2
Ectasian 1.4
Calymmian 1.6
Palaeoproterozoic Statherian 1.8
Orosirian 2.05
Rhyacian 2.3
Siderian 2.5
Archaean Neoarchaean 2.8
Geologic time
Supereon Eon Era Period/Age4,5 Epoch Major Events Years Ago3,6
Phanerozoic Cainozoic Quaternary Holocene 11,700
Pleistocene First ice age the Cainozoic. Ice and Glaciers spread all over the poles. 2.588 million
Tertiary Neogene Pliocene 5.333 million
Miocene 23.03 million
Palaeogene Oligocene 33.9 million
Eocene 56 million
Palaeocene 66 million
Mesozoic Cretaceous Upper Cretaceous 100.5 million
Lower Cretaceous 145 million
Jurassic Upper Jurassic 163.5 million
Middle Jurassic 174.1 million
Lower Jurassic 201.3 million
Triassic Upper Triassic 237 million
Middle Triassic 247.2 million
Lower Triassic 252.17 million
Palaeozoic Permian 298.9 million
Carboniferous Pennsylvanian 323.2 million
Mississippian 358.9 million
Devonian 419.2 million
Silurian 443.4 million
Ordovician 485.4 million
Cambrian 541 million
Precambrian Proterozoic Neoproterozoic2 Ediacaran 635 million
Cryogenian 850 million
Tonian 1,000 million
Mesoproterozoic Stenian 1,200 million
Ectasian 1,400 million
Calymmian 1,600 million
Palaeoproterozoic Statherian 1,800 million
Orosirian 2,050 million
Rhyacian 2,300 million
Siderian 2,500 million
Archaean Neoarchaean 2,800 million
Mesoarchaean 3,200 million
Palaeoarchaean 3,600 million
Eoarchaean 4,000 million
Hadean 4,567 million
  1. In North America, the Carboniferous is subdivided into Mississippian and Pennsylvanian sub-periods or epochs.
  2. Discoveries in the past quarter century have substantially changed the view of geologic and paleontologic events just before the Cambrian. The term Neoproterozoic is used now, but older writers might have used 'Ediacaran', 'Vendian', 'Varangian', 'Precambrian', 'Protocambrian', 'Eocambrian', or might have extended the Cambrian further back in time.
  3. Dates are slightly uncertain, and differences of a few percent between sources are common. This is because deposits suitable for radiometric dating seldom occur exactly at the places in the geologic column where we would most like to have them. Dates with an * are radiometrically determined based on internationally agreed GSSPs.
  4. Paleontologists often refer to faunal stages rather than geologic periods. The faunal stage nomenclature is quite complex. See http://flatpebble.nceas.ucsb.edu/public/harland.html for an excellent time ordered list of faunal stages.
  5. In common usage the Tertiary-Quaternary and Palaeogene-Neogene-Quaternary are treated as periods. The term 'age' (e.g. 'Neogene Age') is sometimes used instead of 'period'.
  6. The time shown in the "Years Ago" column is that of the start of the Epoch in the "Epoch" column.
Precambrian (4.567 gya – 541 mya)
In the left column are Eons, bold are Eras, not bold are Periods. gya = billion years ago, mya = million years ago
Hadean (4.567 gya – 4 gya)
Archaean (4 gya – 2.5 gya) Eoarchaean (2.5 gya – 1.6 gya)

Palaeoarchaean (2.5 gya – 1.6 gya)

Mesoarchaean (2.5 gya – 1.6 gya)

Neoarchaean (2.5 gya – 1.6 gya)

Proterozoic (4 gya – 2.5 gya) Palaeoproterozoic (2.5 gya – 1.6 gya) Siderian (2.5 gya – 2.3 gya) Rhyacian (2.3 gya – 2.05 gya) Orosirian (2.05 gya – 1.8 gya) Statherian (1.8 gya – 1.6 gya)

Mesoproterozoic (1.6 gya – 1 gya) Calymmian (1.6 gya – 1.4 gya) Ectasian (1.4 gya – 1.2 gya) Stenian (1.2 gya – 1 gya)

Neoproterozoic (1 gya - 541 mya) Tonian (1 gya – 850 mya) Cryogenian (850 mya – 635 mya) Ediacaran (635 mya – 541 mya)

Phanerozoic (541 mya – today)
In the left column are Eras, bold are Periods, not bold or italics are Epochs, Italics are stages. kya = thousand years ago, mya = million years ago
Palaeozoic (541 mya – 252.17 mya) Cambrian (541 mya – 485.4 mya)

Ordovician (485.4 mya – 443.4 mya)

Silurian (443.4 mya – 419.2 mya)

Devonian (419.2 mya – 358.9 mya)

Carboniferous (358.9 mya – 298.9 mya) Mississippian (358.9 mya – 323.2 mya) Pennsylvanian (323.2 mya – 298.9 mya)

Permian (298.9 mya – 252.17 mya)

Mesozoic (252.17 mya – 66.0 mya) Triassic (252.17 mya – 201.3 mya) Lower Triassic (252.17 mya – 247.2 mya) Middle Triassic (247.2 mya – 237 mya) Upper Triassic (237 mya – 201.3 mya)

Jurassic (201.3 mya – 145 mya) Lower Jurassic (201.3 mya – 174.1 mya) Middle Jurassic (174.1 mya – 163.5 mya) Upper Jurassic (163.5 mya – 145 mya) Kimmeridgian (157.3–152.1 mya)

Cretaceous (145 mya – 66.0 mya) Lower Cretaceous (145 mya – 100.5 mya) Upper Cretaceous (100.5 mya – 66.0 mya)

Cainozoic (66.0 mya – today)

Tertiary (66.0 mya – 2.588 mya)

Palaeogene (66.0 mya – 23.03 mya) Palaeocene (66.0 mya – 56 mya) Eocene (56 mya - 33.9 mya) Oligocene (33.9 mya – 23.03 mya)

Neogene (23.03 mya – 2.588 mya) Miocene (23.03 mya – 5.333 mya) Pliocene (5.333 mya – 2.588 mya)

Quaternary (2.588 mya – today) Pleistocene (2.588 mya – 11.7 kya) Holocene (11.7 kya - today)

Source International Chronostratigraphic Chart 2013. International Commission on Stratigraphy, retrieved 8 April 2013. Divisions of geologic time – major chronostratigraphic and geochronologic units USGS, retrieved 8 April 2013.