Evidence exists that a catastrophic collision between Earth and a large extraterrestrial body occurred 66 mya, resulting in the extinction of

Evidence exists that a catastrophic collision between Earth and a large extraterrestrial body occurred 66 mya, resulting in the extinction of
A)worms, mollusks, and soft-bodied arthropods
B)jawless ostracoderms and jawed placoderms
C)dinosaurs, pterosaurs, and many gymnosperm species
D)mastodons, sabertoothed cats, and giant ground sloths
E)ferns, horsetails, and club mosses


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