Answer:
Titaallik
Explanation:
One of the major archeological findings what that of the Titaallik. This is a monospecific genus of extinct sarcopterygian from the Late Devonian Period, roughly about 375 Mya. This species helped help us links marine mammals to their terrestrial ancestors since the Titaallik was a half-species which was a snake with legs. Thus linking modern snakes to their amphibious ancestors from which they descended.