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Distribution of orofacial bony clefting mapped to (A) molecular phylogeny (Teeling et al. 2005) and (B) morphological phylogeny (Simmons & Geisler, 1998; Gunnell & Simmons, 2005). Paramedian clefting has arisen once in the clade comprising Rhinolophidae and Hipposideridae. Midline clefting has arisen in seven different families of bats. The ancestral state reconstructs as no clefting in (A) and equivocal for either midline cleft or no cleft in (B).
