. Comparative anatomy of vertebrates. Anatomy, Comparative; Vertebrates. PELVIC ARCH 153 elements of the pelvis usually become ankylosed. The pubis actually meets its fellow in the middle line only in Struthio, and the ischium i7. Fir;. 113.—PELVIS OF au>slralis. Lateral view. (After Marsh.) a, acetabulum ; if, ilium ; in, ischium ; p, pectineal process from the pars acetabularis ; p*, pubis. (dorsally) only in Rhea. A process given off from the posterior end of the pubis in the Emu, and extending forwards, may represent an epipubis. In Archseopteryx, all the elements of the pelvis
. Comparative anatomy of vertebrates. Anatomy, Comparative; Vertebrates. PELVIC ARCH 153 elements of the pelvis usually become ankylosed. The pubis actually meets its fellow in the middle line only in Struthio, and the ischium i7. Fir;. 113.—PELVIS OF au>slralis. Lateral view. (After Marsh.) a, acetabulum ; if, ilium ; in, ischium ; p, pectineal process from the pars acetabularis ; p*, pubis. (dorsally) only in Rhea. A process given off from the posterior end of the pubis in the Emu, and extending forwards, may represent an epipubis. In Archseopteryx, all the elements of the pelvis were independent and relatively small, the ilium coming into relation. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Wiedersheim, Robert, 1848-1923; Parker, W. N. (William Newton), d. 1923. London, Macmillan and co. , limited
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