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Re: Fwd: Re: 11th specimen of Archaeopteryx
Don Ohmes <email@example.com> wrote:
> Interesting idea -- a plant clade so fearsome that no vertebrates will
> inhabit it.
That seems to be the case these days. Quite a number of mammal and
bird species eat the cycad seeds; but AFAIK none of them seem to want
to hang around.
> I would argue they would make nice safe places to spend the night for a
> creature of Arch. size, for just the reasons you mention -- I don't remember
> mentioning nesting. Ground-foraging tree-roosters don't necessarily nest in
> trees, anyway -- American Wild Turkeys certainly do not, and bears regularly
> sleep in trees, as example :D...
Some years ago a guy named Svend Palm proposed that "pro-avians" like
_Archaeopteryx_ climbed cycads, and nested in the apex. I think he
had a publication to that effect (which I don't have). Might be a
website somewhere. As I recall, his evidence wasn't especially
> I am not claiming that Arch. was a ground-forager that slept in trees,
> ordinary or otherwise -- it is just that 1) the lack of perching pes does
> not exclude them from that lifestyle, and 2) their bodies as seen in the
> record would be suitable for it, given the right vegetative forms.
> Both points always seem to get lost in these discussions.
I certainly agree that the lack of a perching pes does not exclude any
small paravian from scaling or sitting in cycads.