*** Genus Cheirogaleus: dwarf lemurs

*** Genus Microcebus: mouse lemurs

*** Genus Mirza: giant mouse lemurs

*** Genus Allocebus

*** Genus Cebus

*** Genus Sapajus

*** Genus Saimiri

*** Genus Paracynarctus () †

*** Genus Cynarctus () †

*** Genus Tomarctus () †

*** Genus Aelurodon () †

*** Genus Paratomarctus () †

*** Genus Carpocyon () †

*** Genus Protepicyon ( 16 Ma )

*** Genus Epicyon () †

*** Genus Borophagus () †

*** Genus Delphinus

*** Genus Tursiops

*** Genus Lissodelphis

*** Genus Sotalia

*** Genus Sousa

*** Genus Stenella

*** Genus Steno

*** Genus Cephalorhynchus

*** Order Primates: lemurs, bushbabies, monkeys, apes ( cosmopolitan ).

* Genus Avahi, woolly lemurs

* Genus Eulemur, true lemurs

* Genus Varecia, ruffed lemurs

* Genus Hapalemur, bamboo lemurs

** Genus Eulemur: true lemurs

** Genus Hapalemur: lesser bamboo lemurs

** Genus Varecia: ruffed lemurs

Although likely, the presence of extrapair copulations ( which exist in other pair-living nocturnal lemurs, e. g. the Masoala Fork-crowned Lemur ( Phaner furcifer ) and the Fat-tailed Dwarf Lemur ( Cheirogaleus medius )) has never been demonstrated in Avahi species.