Cladistic analysis of the trilobite subgenus Acanthopyge (Lobopyge) has not
been previously attempted, apart from an inferred phylogeny of the Lichida
by Thomas and Holloway (1988, Philos. Tuans. R. Sec. London B Biol. Sci. 3
21, 179-262). Results of two separate analyses with variable taxonomic samp
ling show a possible cosmopolitan affinity for Australian Devonian species
of A. (Lobopyge) and corroborate the placement of A. (Lobopyge) rohri in A.
(Lobopyge). Benelopyge is a junior subjective synonym of A. (Lobopyge). (C
) 2001 The Willi Hennig Society.