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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)
Chondrichthyes (Cartilaginous fishes)
Euselachii (Sharks)
Elasmobranchii
Xenacanthiformes (Xenacanthida)

Xenacanthidae (1948209)

Children (8 direct children, 10 direct and indirect children):

Xenacanthus (tree size 1)

Triodus

Expleuracanthus

Fayolia

Plicatodus

Sphenacanthus (tree size 1)

Pleuracanthus

Mooreodontus