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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)
Echinodermata (Echinoderms)
Crinozoa
Crinoidea (Feather stars)
Articulata (Articulata (crinoidea))
Hyocrinida
Hyocrinidae

Ptilocrinus (18606085)

Children (8 direct children, 12 direct and indirect children):

Ptilocrinus flexibilis

Ptilocrinus antarcticus

Ptilocrinus perforatus

Ptilocrinus australis

Ptilocrinus clarki

Ptilocrinus pinnatus

Chambersaecrinus (tree size 3)

Ptilocrinus (tree size 1)