mesozoic and cenozoic era Flashcards

1
Q

when was the mesozoic era?

A

251-65.5 mya

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2
Q

what was significant about the amimal phylas in the mesozoic era?

A

animal from the paleozoic began to spread to new habitats

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3
Q

what lead to the origin of flight equipment in the mesozoic?

A

evolution of tetrapods

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4
Q

what new animals appeared in the mesozoic era?

A

small/large dinosaurs emerge along with first small bodied animals

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5
Q

which animals went through a dramatic diversification during the mesozoic?

A

insects due to evolution of flight

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6
Q

when was the cenozoic era?

A

65.5 mya to now

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7
Q

what main event occured in the cenozoic?

A

mass extinction of terrestrial and marine animals

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8
Q

which animals went extinct and which ones arose in the cenozoic?

A

large non flying and aquatic dinosaurs died, large mammalian herbivores and predators (small to large bodied)

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