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Caecilians are temnospondyls
Topic Started: Jun 21 2017, 09:23 PM (667 Views)
Yi Qi
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And Temnospondyls are actually a paraphyletic group.

The wormy things in your garden are closer to Koolasuchus than to your average toad.
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Furka
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If I had wormy things in my garden ...
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babehunter1324
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No way this won't rise a lot of controversy. Whatever way it's eventually solved it's nice that we can shed a little of light on the caecilians elusive fossil record.
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heliosphoros
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Didn't genetics confirm a monophyletic Lissamphibia?
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TheNotFakeDK
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heliosphoros
Jun 22 2017, 12:49 PM
Didn't genetics confirm a monophyletic Lissamphibia?
Yes, but considering that batrachians (frogs + salamanders) and caecilians are the only living amphibians with DNA samples, they naturally come out as each other's sister taxa.

The study also recovers batrachians as temnospondyls as well, which has been found in previous analyses, although they sit on a branch that diverged fairly early on from the line that would lead to caecilians in this analysis. This is consistent with the genetic evidence since both groups of modern amphibians are closer to each other than either is to other tetrapods.
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Incinerox
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Āeksiot Zaldrīzoti

TheNotFakeDK
Jun 22 2017, 03:35 PM
The study also recovers batrachians as temnospondyls as well, which has been found in previous analyses, although they sit on a branch that diverged fairly early on from the line that would lead to caecilians in this analysis. This is consistent with the genetic evidence since both groups of modern amphibians are closer to each other than either is to other tetrapods.
So, what, all of lissamphibia is monophyletic within temnospondyli then?
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TheNotFakeDK
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Incinerox
Jun 22 2017, 04:42 PM
So, what, all of lissamphibia is monophyletic within temnospondyli then?
Pretty much, Lissamphibia would be roughly equivalent to the clade Rhachitomi in this case.
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magpiealamode
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No good hero is a one-trick phony.

I'm confused... is the study putting caecilians in Lissamphibia still? Wouldn't they then be closer to frogs and whatnot then to Koolasuchus?

What I'm reading is that caecilians and the rest of modern amphibians are temnospondyls.
Edited by magpiealamode, Jun 23 2017, 08:18 PM.
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