Children (11 direct children, 14 direct and indirect children):
Gracilechinus stenoporus
Gracilechinus alexandri
Gracilechinus affinis
Gracilechinus lucidus
Gracilechinus acutus
(tree size 2)
Gracilechinus elegans
Gracilechinus atlanticus
Gracilechinus gracilis
(tree size 1)
Gracilechinus multidentatus
Gracilechinus tylodes
Gracilechinus euryporus