If this is accurate, then the last common ancestor of turtles and birds lived later than the last common ancestor of lizards and birds. Since the cladograms provide contradictory accounts of real events , at most one of them is correct.
If this is accurate, then the last common ancestor of turtles and birds lived later than the last common ancestor of lizards and birds. Since the cladograms show two mutually exclusive hypotheses to describe the evolutionary history , at most one of them is correct.
R
provide contradictory accounts of real events
show two mutually exclusive hypotheses to describe the evolutionary history