Conditions conducive to selective preservation may be partly responsible
for the observed distribution. Some species of azhdarchids have only
been found inland. Other azhdarchids only near shorelines.
Sample size is too small to say that all the azhdarchidae were inland species.
Jim
David Elliott wrote:
While reading your post i was thinking that
i've only heard azhdarchids talked about as inland animals before, and
that's a pretty small sample out of all Pterosauria.