Talk:Cenozoic

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I wish someone smarter and handier than I would create a box with the time subdivisions in it. Since "Cainozoic" or "Caenozoic" misspellings are mentioned, why leave out "Coenozoic'? Could they be eliminated without harm? (Wetman 18 Sep 2003)

Eliminated them today, after a year and a half. Too precipitous and rash? Any book titles with these odd spellings? --Wetman 07:29, 5 Mar 2005 (UTC)

Only just spotted this. Rather late in the day (OK, rather late in the decade), here are some uses of Cainozoic and Kainozoic, bearing in mind that British Caenozoic Fossils has already been added as a ref:

  • Bennison, G.M. & Wright A.E (1969 rep. 1975), The Geological History of the British Isles, London: Edward Arnold. ISBN 0-7131-2226-9. Section VI The Cainozoic Era.
  • "Cainozoic or Kainozoic The division of geological time which succeeds the Mezozoic and ends at the Quaternary". Whitten, D.G.A & Brooks J.R.V (1972), A Dictionary of Geology, Harmondsworth: Penguin Books Ltd, ISBN 0-14051049-4. How wonderfully ambiguous for a dictionary - does that mean "ends at the end of" or "ends before the beginning of" the Quaternary? There is no definition of Caenozoic, so presumably this is their preferred spelling of the same thing, not a subdivision of it. But hang on - the 1911 Encyclopaedia Britannica says "Some confusion has been introduced by the use of the term Cainozoic to include, on the one hand, the Tertiary period alone, and on the other hand, to make it include both the Tertiary and the post-Tertiary or Quaternary epochs;". This presumably is the subject of Rastall, R.H. (1944), Palaeozoic, Mesozoic, and Kainozoic; a geological disaster, Geological Magazine, 81 no. 4; p. 159-165 but I can't get at the text online - anyone have a library handy?

I'd say Kainozoic has fallen out of use, but Cainozoic and Caenozoic are used in Britain, Oz etc, along with Palaeo-, Archaeo-, Encyclopaedia, etc. And whoever introduced the Pal(a)eogene as incorporating the Pal(a)eocene was just having a laugh - or at least had cleaner glasses than mine.. Pterre (talk) 19:10, 7 April 2008 (UTC)

Contents

[edit] copyvio

  • chunk of text in overview from columbia [1], I'll remove. Matt 16:57, 18 February 2006 (UTC)
  • and another chunk from [2], also removing, then I'll retag as a stub. Matt 17:01, 18 February 2006 (UTC)

[edit] Contradiction with Mesozoic article

This article reads (in intro), "the Cenozoic is the era when continents moved into their current positions." But the Mesozoic article reads, "The continents gradually shifted from a state of connectedness into their present configuration."

which is correct? they can't both.... --25 October 2006 NCartmell

  • Well configuration is not the same as position. Their relative positions could have been established in the Mesozoic, and their absolute positions established in the Cenozoic. However, since the plates are still moving, their absolute positions and even relative positions are in flux. The articles should probably say something like for the Mesozoic "recognizable as the current continents" and for the Cenozoic "substantially in their current positions." --Bejnar 20:16, 29 December 2006 (UTC)

[edit] AMK152's Geotimeboxes

AMK152 proposed in edits of 27 December 2006 a geotimebox for this article. I feel that the box information that is appropriate for the article is already in the footer, and that other information can be supplied where important, by links from the text. See discussion at Template talk:Geotimebox. --Bejnar 20:16, 29 December 2006 (UTC)

[edit] animals of this time period

Another terms for the Cenozoic era is the Age of Mammals. Some animals in this period are the Long-horned bison, Platygonus, Mammoth, and Saber-toothed cats. Evidence of these animals are found in fossils. —The preceding unsigned comment was added by 207.165.188.20 (talk) 17:57, 29 March 2007 (UTC).

[edit] Past tense

Why the past tense in "The Cenozoic was a period of long-term cooling"? I tried to address it but got reverted, so I'm assuming there's a reason for it, but it's beyond me. -- Jao (talk) 18:07, 17 March 2008 (UTC)

As nobody seems to have a reason, I'm switching back to "has been". -- Jao (talk) 14:50, 21 March 2008 (UTC)