Talk:Pennsylvanian (geology)

AMK152's Geotimeboxes

AMK152 proposed in edits of 27 December 2006 a geotimebox for this article as follows:

Eon:	Proterozoic • Phanerozoic • Future
Era:	Neoproterozoic • Paleozoic • Mesozoic
Period:	Mississippian • Pennsylvanian • Permian

I feel that the box information that is appropriate for the article is already in the footer, and that other extraenous information, such as previous eras, can be supplied where important, by links from the text. I removed the geotimebox and left the footer, pending discussion. --Bejnar 23:03, 27 December 2006 (UTC)

Epoch ?

I don't believe that the Pennsylvanian is officially considered a Series or Epoch by the International Commission on Stratigraphy. I think it is usually termed a Subsystem (Sub-Period) of the Carboniferous. The series or epochs of the Carboniferous are the Early (Lower), Middle, and Late (Upper) Mississippian, and the Early (Lower), Middle, and Late (Upper) Pennsylvanian. In other words there are six epochs of the Carboniferous. ICS Paleozoic strata list - Parsa (talk) 16:10, 22 April 2009 (UTC)

this gives no info and it is making me vary mad

Requested move

The following discussion is an archived discussion of a requested move. Please do not modify it. Subsequent comments should be made in a new section on the talk page. Editors desiring to contest the closing decision should consider a move review. No further edits should be made to this section.

The result of the move request was: moved to Pennsylvanian (geology). The consensus to move is clear and unanimous. With the agreement of the nominator, the argument in favor of the addition of the disambiguating term "(geology)" also has consensus support. Xoloz (talk) 19:27, 14 June 2014 (UTC)

---

Pennsylvanian → Pennsylvanian age – In light of the recent move of Mississippian to Mississippian age in favor of a disambiguation page, I think this makes sense. Pennsylvanian can refer to the age, the state, or the train, and I see no basis for determining predominance between the age and the state. bd2412 T 15:10, 6 June 2014 (UTC)

• Support per nom. Clearly this is easily likely to mean a person from the state of Pennsylvania. -- 65.94.171.126 (talk) 05:15, 7 June 2014 (UTC)
• Support - and also express same concern at the apparent geological bias of the underlying article. We shouldn't be using North American continent geological periods to talk about Africa and Asia. In ictu oculi (talk) 10:32, 7 June 2014 (UTC)
  • Relax... the Pennsylvanian's subparts all have very Russian names. =)  We're just following the nomenclature established by the International Commission on Stratigraphy. — Jaydiem (talk) 19:06, 12 June 2014 (UTC)
• Support Red Slash 23:49, 8 June 2014 (UTC)
• Qualified support: While I agree that the title of this article could benefit from more specificity, I disagree that adding the word "age" is the best way to do it. Two reasons:

(1)   In the context of stratigraphy, "age" is a term with a specific meaning that would be incorrect to use here; the Pennsylvanian time period is an epoch, not an age.

(2)   In stratigraphy, "Pennsylvanian" (and all other such appellations) refers to both a time period and a rock layer (or set of layers), and different terms are used for each; in the Pennsylvanian case, the terms are epoch for the time period, and series for the rock layers. The use of one of these terms in the article title inappropriately excludes the other.

— Reference: International Chronostratigraphic Chart

Therefore, I submit that this article should be moved to Pennsylvanian (geology). This solution disambiguates the subject as intended by the original move request, while avoiding the problems with the "age" proposal. (And I should note that, for these same reasons—plus still others relating to insufficient disambiguation from the anthropology topic of Mississippian culture—the recently-renamed Mississippian age article should be moved to Mississippian (geology), as I will propose shortly.) — Jaydiem (talk) 16:28, 12 June 2014 (UTC)

Actually, they're considered sub-systems or sub-periods, but that doesn't change the validity of your arguments - ages they're not. Mikenorton (talk) 18:20, 12 June 2014 (UTC)

Ah, I see what you're saying. Strictly speaking, the series/epochs are the Lower Pennsylvanian, the Middle Pennsylvanian, and the Upper Pennsylvanian, so plain old "Pennsylvanian" is a superset intermediate between them and the Carboniferous system/period—hence, "sub-system" and "sub-period". (Personally, I think I'd prefer "super-series" and "super-epoch", but nobody asked me. ;-) — Jaydiem (talk) 19:51, 12 June 2014 (UTC)

No objection to moving this to Pennsylvanian (geology) (or moving Mississippian age to Mississippian (geology), which I submit can be done speedily as a noncontroversial move). bd2412 T 19:16, 12 June 2014 (UTC)

Thanks for your support! Regarding the Mississippian article: I didn't want to just move it myself, because the previous move discussion was closed only a week ago. Don't want to step on toes needlessly. — Jaydiem (talk) 19:56, 12 June 2014 (UTC)

• Support move to Pennsylvanian (geology) per Jaydiem. Mikenorton (talk) 18:20, 12 June 2014 (UTC) [ friendly edit by Jaydiem =) ]
• Comment. I don't think this is as ambiguous as Mississippian, where Mississippian culture seriously challenges the geological period as primary topic (Pennsylvania wasn't even linked in the hat note, and I just created Pennsylvanian (disambiguation) today). However, if the article is moved, Jaydiem's suggestion makes good sense. I picked the name "Mississippian age" for that RM because it seemed more common than alternatives like "Mississippian period", "... subperiod" or "... epoch", but if some other term is preferable according to the consensus in the field, we should go with that. Especially if the article is also supposed to cover the "Pensylvanian series" rock layer, a solution that suits both meanings will be better.--Cúchullain ^t/c 18:30, 12 June 2014 (UTC)

---

The above discussion is preserved as an archive of a requested move. Please do not modify it. Subsequent comments should be made in a new section on this talk page or in a move review. No further edits should be made to this section.

External links modified (January 2018)

Hello fellow Wikipedians,

I have just modified one external link on Pennsylvanian (geology). Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:

• Added archive https://web.archive.org/web/20050305064050/http://www.palaeos.com/Paleozoic/Carboniferous/Pennsylvanian.htm to http://www.palaeos.com/Paleozoic/Carboniferous/Pennsylvanian.htm

When you have finished reviewing my changes, you may follow the instructions on the template below to fix any issues with the URLs.

This message was posted before February 2018. After February 2018, "External links modified" talk page sections are no longer generated or monitored by InternetArchiveBot. No special action is required regarding these talk page notices, other than regular verification using the archive tool instructions below. Editors have permission to delete these "External links modified" talk page sections if they want to de-clutter talk pages, but see the RfC before doing mass systematic removals. This message is updated dynamically through the template {{source check}} (last update: 5 June 2024).

• If you have discovered URLs which were erroneously considered dead by the bot, you can report them with this tool.
• If you found an error with any archives or the URLs themselves, you can fix them with this tool.

Cheers.—InternetArchiveBot (Report bug) 21:43, 21 January 2018 (UTC)