Talk:Sarcopterygii
From Wikipedia, the free encyclopedia
 |
This article is part of WikiProject Fishes, an attempt to organise a detailed guide to all topics related to Fish taxa. To participate, you can edit the attached article, or contribute further at WikiProject Fishes. This project is an offshoot of the WikiProject Tree of Life |
| ??? | This article has not yet received a rating on the quality scale. |
| ??? | This article has not yet received a rating on the importance scale. |
 |
This article is within the scope of WikiProject Tree of Life, an attempt to better organise information in articles related to taxonomy and the phylogenetic tree of life. For more information, visit the project page. | ||
| Start | This article has been rated as start-class on the quality scale. | ||
| ??? | This article has been rated as unknown-importance on the importance scale. | ||
|
Article Grading: The article has been rated for quality and/or importance but has no comments yet. If appropriate, please review the article and then leave comments here to identify the strengths and weaknesses of the article and what work it will need. |
|||
is this the club finned fish ?
[edit] Crossopterygian
Crossopterygian redirects here, but does not appear in the article. Can someone explain? Thanks. — Epastore 03:32, 6 May 2007 (UTC)
The phrase "these fish may be ancestors of land vertebrates" may be a bit misleading in the context of this article. It is likely that an ancient animal that we would classify as a Sarcopterygian (e.g. Tiktaalik) did in fact give rise to land vertebrates, but as the scope of this article encompasses extant Sarcopterygii as well, I suggest changing this to "these fish may be related to the ancestor of land vertebrates" or “ancestral members of this class may have also given rise to land vertebrates.” This may help to alleviate any potential confusion of the "if land vertebrates evolved from Sarcopterygians, why are there still Sarcopterygians?" sort. TimAEvans 20:55, 24 May 2007 (UTC)
[edit] Ocean-dwellers
There's a picture of a coelacanth on the page, with the caption "Coelacanths are the only sarcopterygians that live in the ocean"
Since whales live in the ocean, whales are mammals, mammals are tetrapods, and tetrapods are sarcopterygians, isn't this statement untrue? 75.165.1.80 19:53, 22 June 2007 (UTC)
[edit] Development of fin morphology
If sarcopterygians developed in the ocean, what's the understanding on why their caracteristic "stalked" fins evolved? Bottom dwellers that could use the ability to better navigate around objects? Pelagic but with better fine-motor fin control skills? Something else entirely? --Tropylium (talk) 10:47, 9 June 2008 (UTC)
