Dicynodonts were pig-sized reptiles that lived during the Permian geologic period. An increase in dicynodont species diversity occurred soon after the Permian extinction. Given what you know of this period, this increase in dicynodont species diversity represents , most likely due to .

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The increase in dicynodont species diversity after the Permian extinction represents adaptive radiation, which occurs when a group of organisms diversifies into new forms, each adapted to a specific niche or environment. The availability of previously unoccupied niches due to the extinction of many other species likely allowed dicynodonts to diversify into new forms and occupy different ecological roles.

Dicynodonts Were Pig-Sized Reptiles That Lived During the Permian Geologic