On the subject of flightless pterosaurs - considering the tendency for
birds
to lose flight on islands, I would be surprised if flightless pterosaurs
didn't exist.
Except that birds have entirely free hind limbs, making terrestrial bipedal
gait easy for even flighted birds (with a few peculiar exceptions, like loons).
--
Ronald I. Orenstein Phone: (905) 820-7886
International Wildlife Coalition Fax/Modem: (905) 569-0116
1825 Shady Creek Court
Mississauga, Ontario, Canada L5L 3W2 mailto:ornstn@rogers.com