Geologic time scale ( final version) received a peer review by Wikipedia editors, which on 18 May 2024 was archived. It may contain ideas you can use to improve this article. |
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Text and/or other creative content from this version of Template:Geologic time scale was copied or moved into Geologic time scale with this edit. The former page's history now serves to provide attribution for that content in the latter page, and it must not be deleted as long as the latter page exists. |
This article was reviewed by
The Roanoke Times on July 1, 2005. Comments: Geologist Bob Bodnar of Virginia Tech found "the terminology and ages used [in the article] to be quite accurate and consistent with the most recent data." See the Wikipedia Signpost article. For more information about external reviews of Wikipedia articles and about this review in particular, see this page. |
Text and/or other creative content from this version of User:Jarred_C_Lloyd/Articles/GeologicTimeScale_Terminology was copied or moved into Geologic time scale with this edit on 2022-06-05. The former page's history now serves to provide attribution for that content in the latter page, and it must not be deleted as long as the latter page exists. |
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This page has archives. Sections older than 180 days may be automatically archived by ClueBot III when more than 5 sections are present. |
The article uses the word
epoch to mean a span of time less than an era. In chronology, the term specifies a specific moment in time. Using the latter definition, the current favourite proposed epoch for the Anthropocene is 1950; the epoch for the Holocene is "approximately 11,650 cal years before present". Wiktionary gives both senses (though five of the six use the 'moment' meaning). So I expected to find here a source for the 'time span' meaning, but failed to find it. Under #Terminology, we have Eons are divided into eras,[2] which are in turn divided into periods,[3] epochs and ages.
No citation is given for 'epochs' or 'ages'.
Citation 2 above [Chapter 9 of Stratigraphic Guide] just says a. Definition. The series is a chronostratigraphic unit ranking above a stage and below a system. The geochronologic equivalent of a series is an epoch.
I don't have Citation 3 [the AGI Glossary of geology] but it is curious that we have citations for eras and periods, but not for epochs and ages (and don't even mention 'series'. Nor 'stage' nor 'system', for that matter.).
Would someone rectify, please? -- John Maynard Friedman ( talk) 11:48, 1 February 2022 (UTC)
I was about to change the Precambrian/Cambrian boundary dates (of which there are 3 occurrences) from 541 Ma to 539 Ma in accordance with the recently published ICS chart (as featured elsewhere in this article and many others) but then wondered if this section is intended in full to describe the situation in 2012 in which case it might be appropriate, if confusing, to retain the 541 figure as part of the proposals set out at that time. The section as a whole perhaps needs updating from the perspective of April 2022. Geopersona ( talk) 06:42, 26 April 2022 (UTC)
To those who are interested (@ Geopersona, @ Mikenorton, @ Benniboi01, @ User:GeoWriter?, please ignore if not interested) I've drafted a substantial revision to this article intially spurred on by the commentary above by @ User:John Maynard Friedman. I drafted it seperately from this page as I have been making a lot of edits and it was easier to build upon the existing article content this way. I'd like to try elevate this article quality rating. This revision can be found here.
I've also made a new figure to replace the "clock" lead image to try adress previous criticism and have a more senisble progression (I do find a circle to be an odd representation of a linear timeline). I'm not "attached" to this figure and can retain the current circle if other editors prefer it. I've only got the final section (about non-Earth geologic time scales) to finish writing, and copyedit to fix spelling errors etc. The final section will incorporate the times (in the Hadean) I removed from the main table of geologic time that are non-Earth divisions as IMO these are conflating Earth's geologic time scale and the Moon's geologic time scale in an article spefically about Earth's geotime.
It would be much appreciated if I could have a second pair of eyes run over the draft, comment on layout (order of sections), comment on the newer lead image, suggest improvements (i.e. point out critical flaws) they think need to be made before incorporatating it into this main article etc. I'll start incorporating the changes from next Thursday (Aus time) when I return from field work. Jarred C Lloyd ( talk) 07:18, 4 May 2022 (UTC)
Any objections to me implementing the revised article (see here) and lead image? I've only got a tiny bit to add in the last section of the draft on Non-Earth based geologic time scales. It's a substantial rewrite of the page and I want to give a final heads up before I implement it. Obviously formatting/style may need to be adjusted afterwards if I've missed something or parts don't fit the MOS. Jarred C Lloyd ( talk) 05:32, 25 May 2022 (UTC)
Personally, I really miss the horizontal time scale that presented Earth's geologic time at different scales, as seen in this revision (dated 18 May 2021—perhaps it also appears in later revisions, but there have been a lot of changes to the page since then). I find it the most readable and easily scanned version for just getting a sense of whole the epochs unfold across eons, etc. Is there anyway to bring that version back somewhere? I'm sorry I haven't followed the discussions that led to its disappearance, but I get frustrated everytime I return to this page to look up information about specific epochs, because I found that earlier version much more fun and easy to search than what I has appeared since. Thomascantor ( talk) 15:27, 25 November 2022 (UTC)
I am interested in the past of Earth and life, a fan of extinct lifeforms, but I am not an expert in any relevant field, i.e. I am not a professional geologist, palaeontologist, palaeoclimatologist or something like that.
Nevertheless, while browsing articles, I found this article to significantly overlap with Timeline of the evolutionary history of life and at least partially with Timeline of human evolution. Thus I propose merging this article with Timeline of the evolutionary history of life and refocusing Timeline of human evolution towards Hominidae or at least primate evolution specific dates. Of course, the first Bilateria represent an important milestone, but such milestones can be explained in this article or Timeline of the evolutionary history of life in my opinion. PragmaFisch ( talk) 17:11, 11 November 2023 (UTC)
Geologic time scale ( final version) received a peer review by Wikipedia editors, which on 18 May 2024 was archived. It may contain ideas you can use to improve this article. |
This
level-4 vital article is rated B-class on Wikipedia's
content assessment scale. It is of interest to the following WikiProjects: | |||||||||||||||||||||||||||||||
|
Geologic time scale is a former featured article. Please see the links under Article milestones below for its original nomination page (for older articles, check the nomination archive) and why it was removed. | ||||||||||||||||||||||
|
Text and/or other creative content from this version of Template:Geologic time scale was copied or moved into Geologic time scale with this edit. The former page's history now serves to provide attribution for that content in the latter page, and it must not be deleted as long as the latter page exists. |
This article was reviewed by
The Roanoke Times on July 1, 2005. Comments: Geologist Bob Bodnar of Virginia Tech found "the terminology and ages used [in the article] to be quite accurate and consistent with the most recent data." See the Wikipedia Signpost article. For more information about external reviews of Wikipedia articles and about this review in particular, see this page. |
Text and/or other creative content from this version of User:Jarred_C_Lloyd/Articles/GeologicTimeScale_Terminology was copied or moved into Geologic time scale with this edit on 2022-06-05. The former page's history now serves to provide attribution for that content in the latter page, and it must not be deleted as long as the latter page exists. |
Index
|
|
This page has archives. Sections older than 180 days may be automatically archived by ClueBot III when more than 5 sections are present. |
The article uses the word
epoch to mean a span of time less than an era. In chronology, the term specifies a specific moment in time. Using the latter definition, the current favourite proposed epoch for the Anthropocene is 1950; the epoch for the Holocene is "approximately 11,650 cal years before present". Wiktionary gives both senses (though five of the six use the 'moment' meaning). So I expected to find here a source for the 'time span' meaning, but failed to find it. Under #Terminology, we have Eons are divided into eras,[2] which are in turn divided into periods,[3] epochs and ages.
No citation is given for 'epochs' or 'ages'.
Citation 2 above [Chapter 9 of Stratigraphic Guide] just says a. Definition. The series is a chronostratigraphic unit ranking above a stage and below a system. The geochronologic equivalent of a series is an epoch.
I don't have Citation 3 [the AGI Glossary of geology] but it is curious that we have citations for eras and periods, but not for epochs and ages (and don't even mention 'series'. Nor 'stage' nor 'system', for that matter.).
Would someone rectify, please? -- John Maynard Friedman ( talk) 11:48, 1 February 2022 (UTC)
I was about to change the Precambrian/Cambrian boundary dates (of which there are 3 occurrences) from 541 Ma to 539 Ma in accordance with the recently published ICS chart (as featured elsewhere in this article and many others) but then wondered if this section is intended in full to describe the situation in 2012 in which case it might be appropriate, if confusing, to retain the 541 figure as part of the proposals set out at that time. The section as a whole perhaps needs updating from the perspective of April 2022. Geopersona ( talk) 06:42, 26 April 2022 (UTC)
To those who are interested (@ Geopersona, @ Mikenorton, @ Benniboi01, @ User:GeoWriter?, please ignore if not interested) I've drafted a substantial revision to this article intially spurred on by the commentary above by @ User:John Maynard Friedman. I drafted it seperately from this page as I have been making a lot of edits and it was easier to build upon the existing article content this way. I'd like to try elevate this article quality rating. This revision can be found here.
I've also made a new figure to replace the "clock" lead image to try adress previous criticism and have a more senisble progression (I do find a circle to be an odd representation of a linear timeline). I'm not "attached" to this figure and can retain the current circle if other editors prefer it. I've only got the final section (about non-Earth geologic time scales) to finish writing, and copyedit to fix spelling errors etc. The final section will incorporate the times (in the Hadean) I removed from the main table of geologic time that are non-Earth divisions as IMO these are conflating Earth's geologic time scale and the Moon's geologic time scale in an article spefically about Earth's geotime.
It would be much appreciated if I could have a second pair of eyes run over the draft, comment on layout (order of sections), comment on the newer lead image, suggest improvements (i.e. point out critical flaws) they think need to be made before incorporatating it into this main article etc. I'll start incorporating the changes from next Thursday (Aus time) when I return from field work. Jarred C Lloyd ( talk) 07:18, 4 May 2022 (UTC)
Any objections to me implementing the revised article (see here) and lead image? I've only got a tiny bit to add in the last section of the draft on Non-Earth based geologic time scales. It's a substantial rewrite of the page and I want to give a final heads up before I implement it. Obviously formatting/style may need to be adjusted afterwards if I've missed something or parts don't fit the MOS. Jarred C Lloyd ( talk) 05:32, 25 May 2022 (UTC)
Personally, I really miss the horizontal time scale that presented Earth's geologic time at different scales, as seen in this revision (dated 18 May 2021—perhaps it also appears in later revisions, but there have been a lot of changes to the page since then). I find it the most readable and easily scanned version for just getting a sense of whole the epochs unfold across eons, etc. Is there anyway to bring that version back somewhere? I'm sorry I haven't followed the discussions that led to its disappearance, but I get frustrated everytime I return to this page to look up information about specific epochs, because I found that earlier version much more fun and easy to search than what I has appeared since. Thomascantor ( talk) 15:27, 25 November 2022 (UTC)
I am interested in the past of Earth and life, a fan of extinct lifeforms, but I am not an expert in any relevant field, i.e. I am not a professional geologist, palaeontologist, palaeoclimatologist or something like that.
Nevertheless, while browsing articles, I found this article to significantly overlap with Timeline of the evolutionary history of life and at least partially with Timeline of human evolution. Thus I propose merging this article with Timeline of the evolutionary history of life and refocusing Timeline of human evolution towards Hominidae or at least primate evolution specific dates. Of course, the first Bilateria represent an important milestone, but such milestones can be explained in this article or Timeline of the evolutionary history of life in my opinion. PragmaFisch ( talk) 17:11, 11 November 2023 (UTC)