In a comparative Anatomy lab, you found some bones and the jaws
are toothed and that the anterior limbs are modified for flight.
Determine whether this tetrapod is related phylogenetically to the
subclass Archosauria of the Reptilia, to either the subclass
Archaeornithes or the Neornithes of the Aves or to the subclass
Eutheria of the Mammalia. Describe those aspects of the fossil
which allows you to make your determination. IN OTHER WORDS, WHICH
OF THE ABOVE ANIMALS POSSESS THE FEATURE,...