Mammals Belong to The

Question

Mammals belong to the
A)anapsid lineage of amniotes.
B)synapsid lineage of amniotes.
C)diapsid lineage of amniotes.

Accepted Answer

Mammals belong to the synapsid lineage of amniotes, which is characterized by a single temporal opening on the side of the skull. This distinguishes them from animals in the anapsid lineage (e.g. turtles), which lack temporal openings, and animals in the diapsid lineage (e.g. reptiles, birds), which have two temporal openings on each side of the skull.