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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
Osteichthyes (Bony fish)
Actinopterygii (Ray-finned fishes)
Actinopteri
Neopterygii
Teleostei (Teleost)
Osteoglossocephalai
Clupeocephala
Otomorpha (Otocephala)
Ostariophysi (Ostariophysians)

Gymnotiformes (752264)

Children (6 direct children, 322 direct and indirect children):

Glass knifefish (tree size 57)
Sternopygidae

Rhamphichthyidae (tree size 22)

Hypopomidae (tree size 57)

Ghost knifefish (tree size 120)
Apteronotidae

Gymnotoidei (tree size 60)

Sternopygoidei