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Comparison of the pedal phalanx 1 of digit IV (A–C) and pedal phalanx 1 of digit III (D–G) of Parahesperornis KUVP 2287 (A,D), Hesperornis YPM 1200 (B,E), Baptornis FMNH 395 (C,F), and Fumicollis UNSM 20030 (G) in lateral (1) and plantar (2) views. Elements are scaled to be of a similar length and aligned at the proximal ends. Inset shows silhouettes of the same elements to scale.
