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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)
Agnatha
Cephalaspidomorphi (Cephalaspidomorphs)
Lamprey (Petromyzontiformes)
Petromyzontidae (Northern lampreys)

Petromyzon (3377629)

Children (7 direct children, 7 direct and indirect children):

Sea lamprey
Petromyzon marinus

Petromyzon bdellium

Petromyzon cirrhatus

Petromyzon concolor

Petromyzon epihexodon

Petromyzon mordax

Petromyzon pricka