Distribution of mode of emission of laryngeal echolocation signal mapped to (A) molecular phylogeny (Teeling et al.
2005) and (B) morphological phylogeny (Simmons & Geisler,
1998; Gunnell & Simmons,
2005). The ancestral state is equivocal on either tree. All bats with paramedian clefts are nasal emitters, as are two clades with midline cleft and two clades with no cleft. Nasal emission coincides with occurrence of a nose‐leaf (see Fig.
5).