A cladistic analysis of Balaenidae places Balaenella as the sister taxon of the bowhead whale in a clade separate from right whales.[1]
References
^Bisconti, M. (2005). "Skull Morphology and Phylogenetic Relationships of a New Diminutive Balaenid from the Lower Pliocene of Belgium". Palaeontology 48 (4): 793–816. doi:10.1111/j.1475-4983.2005.00488.x. edit