Related how?

Biota (Life)
Eukaryote (Eukarya)
Diaphoretickes (Plants+hc+sar megagroup)
Archaeplastida
Plant (Green plants)
Biliphyta
Rhodophyta (Red algae)
Rhodophytina

Compsopogonophyceae (1054781)

Children (3 direct children, 125 direct and indirect children):

Compsopogonales (tree size 26)

Erythropeltidales (tree size 92)
Erythropeltales (spelling variation?)

Rhodochaetales (tree size 4)