What do the Permian and Cretaceous Periods have in common?

Explanation:

both had reptiles

answer; /// the correct answer is evidence of the olmec civilization has been found in southern american in a hot steamy forest, archaeologists have found earthen artifacts at several sites that were evidence of the olmec civilization. these   artifacts were mounds,courtyards and pyramids build of stones, also on top of the mounds were many monuments made of stone, some of these stone structures are very large, they weigh as much as 44

d. hip hop

it was originated in the 70s while the harlem renaissance occured in the 1920s