Talk:Ordovician

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Ma vs. mya[edit]

In these era pages I have seen "million years ago" abbreviated as Ma and as mya. Which one is the standard?

If the Mya (unit) article is to be believed, Ma has replaced the older Mya in scientific literature. Because of that I think we should use only Ma.--Jyril 20:23, 26 February 2006 (UTC)
There should be an agreed on convention regarding this notation somewhere, as I know it's been brought up before. I'd like to know as well, so if I find it, I'll leave a note here. --DanielCD 22:08, 26 February 2006 (UTC)
Ma is certainly the standard in professional geologic circles. Cheers Geologyguy 23:54, 10 March 2007 (UTC)
I vote we go with that then. --DanielCD 01:46, 11 March 2007 (UTC)

Adaptive radiation[edit]

Added information on Ordovician adaptive radiation.Erimus 23:11, 10 March 2007 (UTC) [1]

Ordovician

Volcanic eruption[edit]

[1] Notable enough? --Artman40 (talk) 12:08, 26 March 2009 (UTC)

Questions[edit]

Is it OK to start a questions tab here? Bill Newbold (talk) 14:24, 16 September 2009 (UTC)


Are there any more details that we know?

How classifiable and reliable are the descriptions from this time?

Needs Separate Pages[edit]

Lower or Early Ordovician, Middle Ordovician, and Upper or Late Ordovician each could well have a page of its own covering the respective science including paleontology. General historic and summary information could be retained in a general article titled simply Ordovician. Biota sections in the Arenig/Floian page could sensibly be transferred to "Ordovician" or to a specific page covering that particular taxon.J.H.McDonnell (talk) 01:48, 10 November 2009 (UTC)


Capital P?[edit]

Shouldnt it be spelled Ordovician Period rather than Ordovician period? —Preceding unsigned comment added by 130.238.7.35 (talk) 14:47, 12 November 2009 (UTC)

CO2 levels 440 Ma[edit]

Could someone with access please check these papers out, with a view to reducing the stated CO2 level before the late Ordovician glaciation to 3000ppm? I found them being referenced here; http://www.skepticalscience.com/CO2-levels-during-the-late-Ordovician.html but dont want to change the wiki without reading the papers.

http://geology.gsapubs.org/content/37/10/951.abstract

Did changes in atmospheric CO2 coincide with latest Ordovician glacial-interglacial cycles?

According to new research the CO2 level did not correspond to the temperatur at this period of time. See link http://ff.org/centers/csspp/library/co2weekly/2005-08-18/dioxide_files/image002.gif —Preceding unsigned comment added by Chriscross72 (talkcontribs) 08:32, 15 July 2010 (UTC)

cheers. --Littlerobbergirl (talk) 01:20, 13 March 2010 (UTC)

  1. ^ Insert footnote text here