Liisku wuxuu raacayaa McKenna iyo Bells Classification of Mammals for prehistoric genera (1997) iyo Wozencraft (2005) ee Wilson iyo Reeders Mammal Species of the World for genera jira. Percrocutids, oo ka soo horjeeda kala soocida McKenna iyo Bell, kuma jiraan sida subfamily ee Hyaenidae, laakiin sida qoyska Percrocutidae oo gooni ah (inkasta oo guud ahaan loo soo koobay sida walaalaha-taxa ee hyenas). Intaas waxaa sii dheer, hyenada bunni ee nool iyo qaraabada ugu dhow ee bakhtiyay laguma daro genus Pachycrocuta, laakiin waxay ku jiraan genus Henaya. Protelinae (aardwolves) looma tixgeliyo sida subfamily gooni ah, laakiin waxaa lagu daray Hyaeninae. Su'aal: Liiska soo socda waa maxay
McKenna iyo Bells kala soocida naasleyda ee jilitaanka hore