tag:blogger.com,1999:blog-3049195237412585561.post126978395219914888..comments2023-11-07T12:07:59.585-08:00Comments on Pterosaurs to Birds: Paraphyletic = AncestralUnknownnoreply@blogger.comBlogger8125tag:blogger.com,1999:blog-3049195237412585561.post-17076637918684619752011-11-24T14:28:10.036-08:002011-11-24T14:28:10.036-08:00Hello Anonymous.
Could you include a made-up name...Hello Anonymous. <br />Could you include a made-up name in your comments please? <br />That way we can avoid confusion. <br /><br />'Paraphyletic' means ancestral. Think about it.<br />Cladistics does not acknowledge <i>ancestral </i>relationships. Which is surpassingly odd. <br />But I am not getting into a long discussion on this.Dr. Pterosaurhttps://www.blogger.com/profile/13137867768653523183noreply@blogger.comtag:blogger.com,1999:blog-3049195237412585561.post-15716649694673876362011-11-24T12:41:21.780-08:002011-11-24T12:41:21.780-08:00Paraphyletic has its own entry:
http://en.wikipedi...Paraphyletic has its own entry:<br />http://en.wikipedia.org/wiki/Paraphyly<br />Read it carefully (for once) to understand the relation between 'paraphyletic' and 'ancestral'.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-3049195237412585561.post-12392397317448277912011-10-20T11:59:28.620-07:002011-10-20T11:59:28.620-07:00I have suggested that modern seabirds (eg. albatro...I have suggested that modern seabirds (eg. albatrosses) developed from an Ichthyornithes subgroup:<br />http://pterosaurnet.blogspot.com/2011/10/seabirds_3981.html<br /><br />However, A Nonny Mouse posted:<br />"It is still saying that all living birds are more closely related to each other than to any of these extinct species."<br /><br />So for example, are we to think that modern seabirds such as albatrosses are more closely related to hummingbirds, than albatrosses are to Ichthyornithes? <br /><br />Can anyone support that assertion? <br />What specific characteristics are you looking at to make that assertion?Dr. Pterosaurhttps://www.blogger.com/profile/13137867768653523183noreply@blogger.comtag:blogger.com,1999:blog-3049195237412585561.post-65059010274614442652011-10-17T15:55:11.252-07:002011-10-17T15:55:11.252-07:00A Nonny Mouse is not supporting his point. Anyone ...A Nonny Mouse is not supporting his point. Anyone else care to try to support his point?Dr. Pterosaurhttps://www.blogger.com/profile/13137867768653523183noreply@blogger.comtag:blogger.com,1999:blog-3049195237412585561.post-7579185907398338662011-10-17T12:22:05.764-07:002011-10-17T12:22:05.764-07:00Living birds form a group which share a more recen...Living birds form a group which share a more recent common ancestor than they do with the "Odontognathae". If you read the links Wikipedia provides at the bottom, and look at other references, such as Julia Clarke's <i>Ichthyornis</i> monograph you should see what I am talking about, and that would give you a list of characters- characters that have already been mentioned elsewhere, and which you have ignored.A Nonny Mousenoreply@blogger.comtag:blogger.com,1999:blog-3049195237412585561.post-19069195701317597022011-10-16T15:18:00.619-07:002011-10-16T15:18:00.619-07:00A Nonny Mouse could you please elaborate on what y...A Nonny Mouse could you please elaborate on what you mean by saying that all living birds are more closely related to each other than to any of these extinct species.<br /><br />And I do not mean a general description but specifically what you mean, by referring to specific traits.Dr. Pterosaurhttps://www.blogger.com/profile/13137867768653523183noreply@blogger.comtag:blogger.com,1999:blog-3049195237412585561.post-73393650225728058592011-10-16T06:06:36.950-07:002011-10-16T06:06:36.950-07:00And other people have also been saying much the sa...And other people have also been saying much the same thing. But it does not support your notion that specific modern groups are descended from specific members (or unknown members of families) of the Odontognathae. It is still saying that all living birds are more closely related to each other than to any of these extinct species.A Nonny Mousenoreply@blogger.comtag:blogger.com,1999:blog-3049195237412585561.post-2754635886635990092011-10-15T07:39:13.359-07:002011-10-15T07:39:13.359-07:00I was quite surprised/pleased to see this:
http://...I was quite surprised/pleased to see this:<br />http://en.wikipedia.org/wiki/Modern_birds<br />"In traditional classification, the Neornithes also included a third superorder, the Odontognathae, containing advanced toothed birds from the Cretaceous, like <b>Hesperornis and Ichthyornis</b>.[5] This superorder is likely paraphyletic [ANCESTRAL], and fall outside [ancestral to] the crown group birds. It is not entirely clear whether the Palaeognathae too are paraphyletic, or represent a primitve grade of birds.[6]"<br /><br />This seems to be saying exactly what I have been saying. <br />Modern bird taxa developed from such taxa as Hesperornithes and Ichthyornithes etc.Dr. Pterosaurhttps://www.blogger.com/profile/13137867768653523183noreply@blogger.com