Related how?

Biota (Life)
Eukaryote (Eukarya)
Diaphoretickes (Plants+hc+sar megagroup)
Archaeplastida
Plant (Green plants)
Viridiplantae (Chlorobiota)
Streptophyta (Streptophytina)
Embryophyte (Land plants)
Tracheophyta (Higher plants)
Euphyllophytina (Euphyllophyta)
Radiatopses
Lignophyta
Seed plants (Phanerogams)
Pteridospermatophyta (Seed fern)

Callistophytales (1027330)

Children (4 direct children, 6 direct and indirect children):

Callistophyton

Callistophytaceae

Emplectopteridaceae (tree size 2)

Cornucarpaceae