Children (15 direct children, 202848 direct and indirect children):
Cephalochordata
(tree size 74)
Lancelets
Metaspriggina
(tree size 1)
Olfactores
(tree size 202752)
Myomerozoa
Antlerpeton
Baphetoidea
(tree size 4)
Prochordata
Undichna
Euchordata
Zhongxiniscus
Thursius
(tree size 1)
Beckius
Ochopristis
Urochordata
Atreipodidae
(tree size 1)