[Taxacom] Our Monkey Ancestors

Stephen Thorpe s.thorpe at auckland.ac.nz
Thu Jan 14 22:10:14 CST 2010


A very interesting article on the subject I just found:
http://icb.oxfordjournals.org/cgi/reprint/45/2/342.pdf

seems we may all be sponges, after all! I can see it in some ... :)


________________________________________
From: taxacom-bounces at mailman.nhm.ku.edu [taxacom-bounces at mailman.nhm.ku.edu] On Behalf Of Curtis Clark [jcclark-lists at earthlink.net]
Sent: Friday, 15 January 2010 5:00 p.m.
To: taxacom at mailman.nhm.ku.edu
Subject: Re: [Taxacom] Our Monkey Ancestors

On 2010-01-14 12:40, Stephen Thorpe wrote:
> add multicellular (=apomorphy, though biphyletic - also an apomorphy
> of plants)

If we're talking about complex multicellularity (ontogeny resulting in
multicellular differentiated organs), it's also found in crown
heterokonts and fungi, and even in plants, the rhodophytes and
streptophytes developed it separately, and there are chlorophytes that
are arguably multicellular.

If I wanted a morphological synapomorphy, I'd go for gastrulation.

--
Curtis Clark                  http://www.csupomona.edu/~jcclark/
Director, I&IT Web Development                   +1 909 979 6371
University Web Coordinator, Cal Poly Pomona

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