Biota (Life)
Eukaryote (Eukarya)
Podiata
Unikont (Unikonta)
Opisthokont (Opisthokonta)
Holozoa
Filozoa
Apoikozoa (Choanozoa)
Animal (Animalia)
Metazoa
Epitheliozoa
Eumetazoa
Bilateria
Deuterostome (Deuterostomia)
Hemichordata (Hemichordates)
Graptolithinia (Graptolithina)
Graptoloidea
Dichograptidae
Didymograptus
Children (3 direct children, 3 direct and indirect children):
Didymograptus artus
Didymograptus stabilis
Didymograptus stavus