A preliminary phylogenetic analysis of the Pseudophyllidea, based on the 16
type-genera of putative families, indicates that a division into two subor
ders is reasonable. The subordinal grouping are, on the whole, congruent wi
th those suggested by earlier workers, but the positions of three genera, H
exagonoporus, Cephalochlamys and Pambothriocephalus, are somewhat anomalous
with respect to earlier work.