[Taxacom] Angiosperm origins: Darwin's "abominable" mystery

Thomas G. Lammers lammers at uwosh.edu
Fri Mar 19 07:14:13 CDT 2010


At 09:28 PM 3/18/2010, Kenneth Kinman wrote:
>        However, new molecular evidence published in Proceedings of the
>National Academy of Sciences earlier this week indicates that even the
>crown clade of angiosperms may have originated as early as the Upper
>Triassic.  This most likely indicates that stem angiosperms (which went
>extinct) occur earlier.

It would not surprise me if some or all of the embryological features 
diagnostic of angiospermy would be found in Mesozoic seed-plant fossils 
already known, were such things discernible.  We are never so smart as we 
fancy ourselves.



Thomas G. Lammers
Department of Biology and Microbiology
University of Wisconsin Oshkosh
http://www.uwosh.edu/biology/storage-for-faculty-web-pages/tom-lammers-ph.d
http://www.uwosh.edu/colsreports/faculty-notes/dr.-thomas-lammers-1/dr.-thomas-lammers

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