The Mesozoic. Periods of the Mesozoic ► Triassic ► Jurassic ► Cretaceous.
“ Mesozoic ” = “ Middle life ” Meso= between Zoon = living being Dinosaurs Evolution...
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“Mesozoic” = “Middle life”• Meso= between• Zoon= living being
Dinosaurs• Evolution• Extinction
248 million years ago 65 million years ago• Lasted about 180 million years
Continental drift
Hot climate
Evolution and
diversification
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225 to 195
135 to 65 195 to
135
PHANEROZOIC EON
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STOP700 different
species of dinosaurs have been identified
and named.
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Pangea• One super continentClimate• Hot, dry
• 6ºC to 12ºC higher
• SeasonsDinosaurs appeared• Small, fast
Dromiceiomimus
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Dinosaurs appeared• Small, fastRapid evolution• Fishes• Insects• Reptiles• Cone-bearing plantsEarliest mammals• Very small
Longest dinosaur name: Micropachycephalosaurus
Did you know?
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Pangea starts breaking• Laurasia and Gondwana.Climate• Warm, moist• No polar ice= flooded
areas
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Dinosaurs reached greatest sizeEvolved deriveed charater:
feathers• Archaeopteryx• Dinosaur-like bird
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Separation continues• Volcanic activityClimate• Sea levels dropped• Season are back!
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DiversityT-Rex (Tyrannosaurus
rex)Flying reptiles and birdsTurtles, crocodrilesFishes and marine
invertebrates • PlesiosaursLeafy trees, shrubs,
flowering plants
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Which was the
fiercest dinosaur?
T-REX
Utahraptor
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•Destructive events•Meteorite impact•10km wide•Mexico
•Volcanic eruption
•Mass extinction
•70% life form•All dinosaurs
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?…MAMMALS BirdsMany plants (ferns)Flowered treesSmall lizards/crocodiles/alligators/turtlesFish, squids, sharks, etc.
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