Children (40 direct children, 407 direct and indirect children):
Phyllophorus
(tree size 77)
Neothyonidium
(tree size 15)
Pentamera
(tree size 25)
Neopentadactyla
(tree size 1)
Thyone
(tree size 141)
Thyone (echinoderm)
Allothyone
(tree size 6)
Stolus
(tree size 19)
Phyrella
(tree size 9)
Thyonidiella
(tree size 6)
Pseudocucumis
(tree size 14)
Pentadactyla
(tree size 2)
Massinium
(tree size 12)
Cladolella
(tree size 1)
Lipotrapeza
(tree size 10)
Semperiella
(tree size 2)
Selenkiella
(tree size 3)
Thyonina
(tree size 3)
Thorsonia
(tree size 3)
Ekmanothyone
(tree size 1)
Anthochirus
(tree size 1)
Triasemperia
(tree size 1)
Phyllostauros
(tree size 1)
Propinquoohshimellinae
Thyoninae
Phyllophorinae
Semperiellinae
Phyllophorella
(tree size 13)
Pseudoplacothuria
(tree size 1)
Thyonellinae
Euphyllophorus
Hemicrepis
Isophyllophorus
Paraphyllophorus
Pentactes
Phyllonovus
Phyllothuria
Subuculus
Thyoneria
Trachythyonidium
Urodemella