whales | | | | Insect eaters _Sarcoceta_ \-----v----/ \---v----/ _Insectivora_ | | | | | \------------------v---------------------/ Sea cows Semi-apes _Sirenia_ _Prosimiæ_ =Whales= =Deciduous Animals= +Cetacea+ +Deciduata+ | Poor in teeth | =Hoofed Animals= _Edentata_ | +Ungulata+ | | | | | \-------v--------/ | =Indeciduous= | +Indeciduata+ | | | \-------------v-------------/ =Placental Animals= +Placentalia+ Herbivorous marsupials | Carnivorous marsupials _Marsupialia botanophaga_ | _Marsupialia zoophaga_ | | | \--------------v-----------------/ =Marsupial= +Marsupialia+ Beaked animals | _Ornithostoma_ | | | \---------v--------/ Primary mammals _Promammalia_ =Cloacal Animals= +Monotrema+
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