here probably came about due to a prime ordeal storm. some of the finds give the researchers a fairly accurate idea of the era they re currently digging in. these ammonites are between two hundred and two hundred four million years old further up the mountain the two paleontologists focus on an inconsiderate q.s. layer of material in the surface of the path and uncover. a minor sensation the ground is strewn with tiny snail shells species that were previously unknown and fish scales further evidence of a reef teeming with life. the brown neck also bears signs of a dramatic event in our planet s history two hundred million years ago the transition from the triassic to the jurassic period was marked by a mass extinction probably unleashed by volcanic eruptions. conditions in the shallower areas of the primordial test this ocean changed dramatically.