Which characteristic possessed by Archaeopteryx was least likely present in their dinosaurian ancestors?
A) teeth
B) feathers
C) a long tail with many vertebrae
D) three clawed fingers on each hand
E) a forked breastbone

Question

Quizplus · Accepted Answer

The forked breastbone (E) is a characteristic least likely present in Archaeopteryx's dinosaurian ancestors. This feature is more closely associated with the anatomy of modern birds, relating to the attachment of flight muscles, and is not a trait typically found in non-avian dinosaurs.

Which Characteristic Possessed by Archaeopteryx Was Least Likely Present in Their