LEG STRUCTURE: The first thing we
need to do is to
determine whether tetrapods (land dwelling vertebrates) are similar to one another in having
the same basic leg structure, or whether there is wide variation among tetrapods in this
feature. What is meant by leg structure here is the arrangement and number of bones in the
leg. A typical structure is illustrated immediately below:
1. Do allosaurs and tyrannosaurs have the basic leg
structure illustrated here? Consider your field trip results.