Chionopsis_procancellataChionopsis_amathusiaPuberella_cribrariaLirophora_athletaPanchione_ulocymaMercenaria_mercenariaChione_elevataC_californiensisC_undatellaC_tumensC_comptaC_cancellataC_guatulcoensisC_mazyckiiC_chipolanaC_erosaC_peabodyiC_subimbricataC_pailasanaOsteologyMaximum ParsimonyBased on reanalysis of the original matrix.Roopnarine_2001aa