Children (24 direct children, 1078 direct and indirect children):
Charitometridae
(tree size 56)
Thalassometridae
(tree size 83)
Bourgueticrinidae
(tree size 27)
Tropiometridae
(tree size 5)
Pterocomidae
(tree size 2)
Bourgueticrinina
(tree size 66)
Comatulidina
(tree size 255)
Ptilometridae
(tree size 3)
Eudiocrinidae
(tree size 14)
Guillecrinina
(tree size 6)
Oligophreata
(tree size 10)
Macrophreata
Antedonoidea
(tree size 318)
Comatuloidea
(tree size 18)
Notocrinoidea
(tree size 11)
Solanocrinites
Himerometroidea
Paracomatuloidea
Comasteroidea
(tree size 171)
Thiolliericrinidae
Tropiometracea
Atopocrinidae
(tree size 3)
Thiolliericrinus
(tree size 4)
Alecto
(tree size 2)