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Biota (Life)
Eukaryote (Eukarya)
Podiata
Unikont (Unikonta)
Opisthokont (Opisthokonta)
Holozoa
Filozoa
Apoikozoa (Choanozoa)
Animal (Animalia)
Metazoa
Epitheliozoa
Eumetazoa
Bilateria
Deuterostome (Deuterostomia)
Chordata (Chordates)
Olfactores
Craniata (Craniata (chordata))
Vertebrata (Animals with backbone)
Gnathostomata (Gnathostome)
Eugnathostomata
Teleostomi
Euteleostomi
Sarcopterygii (Lobe-finned fishes)
Dipnotetrapodomorpha
Tetrapodomorpha (Tetrapodomorph)
Tetrapoda (Tetrapod)
Reptiliomorpha
Amniota (Amniote)
Synapsidomorpha
Synapsid (Synapsida)
Eupelycosauria
Sphenacodontia
Sphenacodontoidea
Therapsida (Therapsid)
Neotherapsida
Theriodont (Theriodontia)
Eutheriodontia
Cynodontia (Cynodont)
Epicynodontia
Eucynodontia
Probainognathia
Chiniquodontoidea
Prozostrodontia
Mammaliaformes
Mammal (Mammals)
Theriamorpha
Theriiformes
Holotheria
Trechnotheria
Cladotheria
Zatheria
Boreosphenida
Theria (Therians)
Metatheria
Marsupial (Marsupialia)
Didelphimorphia (The opossums)

Didelphidae (21834)

Children (19 direct children, 354 direct and indirect children):

Didelphinae (tree size 275)

Cryptonanus (tree size 5)

Esteslestes

Bistius

Caluromyinae (tree size 30)

Derorhynchinae (tree size 2)

Turgidodon

Eobrasiliinae (tree size 2)

Alphadontinae

Peradectinae (tree size 1)

Glironiinae

Chacodelphys (tree size 1)

Pucadelphys (tree size 1)

Hyladelphinae (tree size 2)

Marmosinae

Thylamyinae

Didelphys (tree size 12)

Notodelphis (tree size 1)

Peramys (tree size 3)