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Re: Origin(s) of living amphibians (free pdf)
Thank you! :-)
Last sentence of the abstract:
We present examples of pertinent character state distributions and
> explore a large gap in the fossil record of small stegocephalians.
By "stegocephalians", Michel means tetrapods in the traditional
(apomorphy-based) sense (well, the definition turned out to make
*Tiktaalik* a stegocephalian, but that's close enough). He supports
restricting the name Tetrapoda to the crown group; we completely avoid
that name in the paper.
...And I just noticed that "stegocephalians" implies amniotes as well as
others; small amniotes are represented throughout the time in question,
even though they're not terribly abundant -- but they're not what we mean.