Figure 6 in Phylogenetic affinities and taxonomy of the Oligocene Diomedeoididae, and the basal divergences amongst extant procellariiform birds

Figure 6. Bones described by van Beneden (1871) in comparison to Rupelornis definitus specimens from the collection of IRSNB. A, 'Vanellus selysii' holotype (distal humerus, from van Beneden, 1871: fig. 2, reversed to facilitate comparison) in comparison to B, IRSNB Av 102a. C, incomplete humerus referred to 'Anas creccoides' (= Anas benedeni Sharpe, 1899) (from van Beneden, 1871: fig. 4) in comparison to D, IRSNB Av 111 (reversed to facilitate comparison). E, Rupelornis definitus holotype (distal tibiotarsus, from van Beneden, 1871: fig. 7) in comparison to F, IRSNB Av 103c. Scale bars = 10 mm and refer only to IRSNB fossils; bones from van Beneden (1871) are not to scale.