EntityQ969291· pop 16· linked from 64 articlesCope's ruleSign in to saveA postulation pertaining to evolutionConnectionsCanidaeEntityNorth AmericaEntitymammalEntitydinosaurEntityorganismEntityInternational Standard Book NumberEntityextinctionEntitydigital object identifierEntitytaxonomyEntityInternational Standard Serial NumberEntityPaleozoicEntityMesozoicEntityAfrican bush elephantEntityCenozoicEntityUniversity of California, Los AngelesEntityPhanerozoicEntitycladeEntityQ180686EntityJSTOROrganizationbibcodeEntityCategoriesAnimal sizeBiological rulesEvolutionary biology