Talk:Nautiloid
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I originally wrote this article in 1998 and published it on the Web....
It need links to other articles.
Dlloyd 20:15, 27 Jul 2004 (UTC)
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Dlloyd 00:35, 30 Jul 2004 (UTC)
Merge?
Should this be merged with Nautilus or vice versa? Seem like they overlap considerably, but I'm no cephalopod expert. --Lexor|Talk 13:36, Nov 16, 2004 (UTC)
- I see, nautiloid's refer to all the extinct forms of cephalopod's as well. OK, nix that. --Lexor|Talk
ammonoids
"The ammonoids...evolved from the nautiloids" - does this mean ammonoids are not nautiloids? Perhaps it should say they are realted to the ammonoids. --DanielCD 16:22, 16 Nov 2004 (UTC)
Tweaked the sentence a bit -- just a bit confused about which designation is higher or if they are equal -- ammonoid and nautiloid. --DanielCD 16:31, 16 Nov 2004 (UTC)
- Yeah, I don't think taxonomists have this well in hand yet. There are references that say Ammonoidea and Belemnoidea (and other Coleoidea) evolved from older Nautiloidea, but that would mean, cladistically, that they are all nautiloids (see the classification tree on Cephalopoda. ToLWeb (http://tolweb.org/tree?group=Cephalopoda) shows a somewhat different tree than the one we're using (which comes from this PDF (http://www.mnh.si.edu/cephs/newclass.pdf) which is also what CephBase uses. Neither show well any understanding of where the exticnt groupings fit in or how the extant and extinct groupings are related to each other. - UtherSRG 18:17, 16 Nov 2004 (UTC)