Children (13 direct children, 13 direct and indirect children):
Phrixocephalus cincinnatus
Phrixocephalus alatus
Phrixocephalus arboreus
Phrixocephalus carcellesi
Phrixocephalus cepolae
Phrixocephalus crassus
Phrixocephalus curvatus
Phrixocephalus diversus
Phrixocephalus longicollum
Phrixocephalus reniformis
Phrixocephalus triangulus
Phrixocephalus umbellatus
Phrixocephalus vipereus