The phylogenetic analysis of Schoch (2012) found that Broiliellus was most closely related to Dissorophus. However, the three species of Broiliellus did not form their own clade, but rather a polytomy (unresolved evolutionary relationship) with Dissorophus.
Holmes, Berman & Anderson (2013) named a new species of Broiliellus, Broiliellus reiszi. They performed two phylogenetic analyses using the data matrix of Schoch (2012). In the second analysis the codings for "B." novomexicanus (i.e. Rio Arriba taxon) were not modified. This analysis yielded more resolved topology and a monophyleticBroiliellus with the exclusion of "B." novomexicanus. Below is the cladogram from that analysis:
^ abSchoch, R. R. (2012). "Character distribution and phylogeny of the dissorophid temnospondyls". Fossil Record15 (2): 121–137. doi:10.1002/mmng.201200010.edit
^Holmes, R.; Berman, D. S.; Anderson, J. S. (2013). "A new dissorophid (Temnospondyli, Dissorophoidea) from the Early Permian of New Mexico (United States)". Comptes Rendus Palevol. doi:10.1016/j.crpv.2013.07.002.edit