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