Fig. 15 in Morphology, Phylogenetic Taxonomy, And Systematics Of Ichthyornis And Apatornis (Avialae: Ornithurae)

Fig. 15. The pelvic bones of a specimen previously referred to Apatornis celer (YPM 1734; the Iaceornis marshi holotype) as originally illustrated in right lateral view (Marsh, 1880: pl. XXXII). These elements are missing and could not be examined. Anatomical abbreviations original to Marsh (1880; a: Ischio­sciatic interval, b: obturator interval, af: acetabular foramen, il: ilium, is: ischium, pb: pubis). Figure not to scale.