Presentation on theme: "By: Phil Stark and Michael Sartor Earth Science, p.6 Fr. O’Neill"— Presentation transcript:
1By: Phil Stark and Michael Sartor Earth Science, p.6 Fr. O’Neill The Mesozoic EraBy: Phil Stark and Michael SartorEarth Science, p.6Fr. O’Neill
2In The BeginningThe start of the Mesozoic Era was a desolate time in Earth’s history.Over 90% of Earth’s life extinct.Barren wasteland from comet, climate change, or volcanic eruptions.Called: Great Dying.Means “Middle Animals”Life that survived re-populated the planet, diversified ecosystems, and gave birth to all new life
3What It Was Like Earth’s landmasses collided forming Pangea. Pangea was the first known super-continent.C-shaped.Came undone as soon as it formed.The split caused erratic climate everywhere.Seasonal monsoons, global warming, and rift valley formationFormed red sediment that best preserved fossils
4Life FormsOceans were teaming with all new life: coil-shelled ammonites, mollusks, sea urchins, coral.Giant reptiles such as the: Ichthyosaurs, the long-necked and paddle-finned plesiosaurs, and squids.Phytoplankton first appeared.Frogs, salamanders, crocodiles, and turtles.Pterosaurs ruled the sky.On the ground were: moss, liverwort, ginkgoes, palm-like cycads.Also on land were: spiders, scorpions, millipedes, and grasshoppers.First evolutions of dinosaurs.