Children (20 direct children, 20 direct and indirect children):
Halosaurus guentheri
Halosaurus ovenii
Oven's halosaur
Halosaurus carinicauda
Halosaurus johnsonianus
Halosaur
Halosaurus parvipennis
Halosaurus attenuatus
Halosaurus ridgwayi
Goanna fish
Halosaurus pectoralis
Halosaurus radiatus
Halosaurus sinensis
Halosaurus affinis
Halosaurus anguilliformis
Halosaurus goodei
Halosaurus gracilis
Halosaurus hoskynii
Halosaurus macrochir
Halosaurus mediorostris
Halosaurus niger
Halosaurus phalacrus
Halosaurus rostratus