Related how?

LUCA (Cellular life)
Prokaryotes (Prokaryota)
Archaea (Archaebacteria)
Eukaryote (Eukarya)
Podiata
Unikont (Unikonta)
Opisthokont (Opisthokonta)
Holozoa
Filozoa
Apoikozoa (Choanozoa)
Animal (Animalia)
Metazoa
Epitheliozoa
Eumetazoa
Bilateria
Deuterostome (Deuterostomia)
Chordata (Chordate)
Olfactores
Craniata (Craniate)
Vertebrata (Animals with backbone)
Gnathostomata (Gnathostome)
Eugnathostomata
Teleostomi
Euteleostomi
Sarcopterygii (Lobe-finned fishes)
Dipnotetrapodomorpha
Tetrapodomorph (Tetrapodomorpha)
Tetrapoda (Tetrapods)
Reptiliomorpha
Amniota (Amniote)
Synapsidomorpha
Synapsid (Synapsida)
Eupelycosauria
Sphenacodontia

Sphenacodontidae (131809)

Children (13 direct children, 22 direct and indirect children):

Dimetrodon (tree size 4)

Ctenospondylus (tree size 1)

Sphenacodon (tree size 1)

Ctenorhachis (tree size 1)

Secodontosaurus

Bathygnathus
Dimetrodon borealis

Neosaurus

Cryptovenator (tree size 1)

Macromerion

Cutleria (tree size 1)

Sphenacodontinae

Secodontosaurinae

Varanopsinae