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Re: tiny dinosaur
- To: firstname.lastname@example.org
- Subject: Re: tiny dinosaur
- From: Tim Williams <email@example.com>
- Date: Mon, 20 Jun 2011 13:59:09 +1000
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Jonas Weselake-George <firstname.lastname@example.org> wrote:
> My reference to bauplans was within one group or the other - basically,
> if there is a family of morphologically and ecologically similar
> species, and they are experiencing similar pressures they are likely to
> stumble down different routes. So a half-dozen flight evolution events
> within the same family of species is quite likely.
Yes, I can see that happening in paravians. If small unenlagiines
like _Rahonavis_ could glide, it is possible their aerial abilities
evolved independently of microraptorines. Personally, I think the
common ancestor of all paravians was capable of climbing and gliding,
and these behaviors were primitive for Paraves (and lost multiple
times - by velociraptorines, large unenlagiines, etc).
> Thanks for the more complete list of mammalian gliders - I wasn't aware
> of a number of them.
The total of nine groups I came up with excluded sifakas
(_Propithecus_), probably unjustifiably. But I wanted to stick to
full patagial gliders, not mammals that solely use incipient patagia
or their pelage to create lift.