Ichthyoconodon was the first described member of this group, back in 1995, previously usually ranked among eutriconodonts, albeit tentatively due to its atypical teeth.
Subsequent analyses have consistently recovered Argentoconodon as the sister taxon of Volaticotherium, with Ichthyoconodon as the sister taxon of that clade and thus the basalmost volaticotherin [REF].