Biota (Life)
Eukaryote (Eukarya)
Podiata
Unikont (Unikonta)
Opisthokont (Opisthokonta)
Holozoa
Filozoa
Apoikozoa (Choanozoa)
Animal (Animalia)
Metazoa
Epitheliozoa
Eumetazoa
Bilateria
Deuterostome (Deuterostomia)
Hemichordata (Hemichordates)
Graptolithoidea
Cephalodiscoidea (18485081)
Children (2 direct children, 29 direct and indirect children):
Cephalodiscidae
(tree size 25)
Eocephalodiscidae
(tree size 2)