Synxenoidea, Silvestri, 1923

Short, Megan & Vahtera, Varpu, 2017, Phylogenetic relationships of millipedes in the subclass Penicillata (Diplopoda) with a key to the genera, Journal of Natural History 51 (41 - 42), pp. 2443-2461 : 2454

Superfamilies Synxenoidea and Polyxenoidea

The morphology of the family Synxenidae is quite distinct from that of the remaining two families in the order Polyxenida , and led to erection of the two superfamilies Synxenoidea and Polyxenoidea ( Silvestri 1948) . It is therefore surprising that the two clades were only recoverable in the ML analysis of the molecular data. Regier et al. (2005) also recovered the two superfamilies with a likelihood analysis of three species, while their parsimony analysis showed the Lophoproctidae as the basal clade with Polyxenidae and Synxenidae grouped together.