Warm-upWeek 17 1._ was the major source of free oxygen in the atmosphere. a. molten rockc. green plants b. waterd. silicate minerals 1.Changing _________.

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Presentation transcript:

Warm-upWeek 17 1._____ was the major source of free oxygen in the atmosphere. a. molten rockc. green plants b. waterd. silicate minerals 1.Changing _____________ was the cause of the Paleozoic extinction. 2.A giant __________ was most likely the cause of the great Mesozoic extinction.

Cenozoic Era: Age of Mammals (65 MYA  Now.) 13.4 “RECENT LIFE.”

Cenozoic: Less Time Ago… 1.Better Fossils! 2.“Richer” History.

Cenozoic Land: Lots of Plate Movement New: –Mountains –Volcanoes –Earthquakes

Cenozoic Life: Plants: –Angiosperms –Flowers! Post-Dino Mammals –Humans!

Why Mammals kick-butt… 1.Born alive 2.Warm-blooded –Maintain body temp o 3.Hair Beat-out Reptiles!

Rhinoceros.

Indricotherium 20 ft tall 25 ft long 30 tons Late Cenozoic Mammal Extinction Largest die Why? - Humans…

Hunting Season?...

Relative Dating Review.