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
Sinograptidae
Children (2 direct children, 2 direct and indirect children):
Holmograptus lentus
Holmograptus spinosus