Distal end (plantar and distal view) of the tarsometatarsus of Proardea? deschutteri n. sp. from the earliest Oligocene of Belgium (IRSNB Av 129) in comparison with selected extant Ardeidae. Scale bars: 5 mm. Strict consensus tree of the analysis of the emended data matrices of Worthy et al. (2013) with Proardea? deschutteri n. sp. added.