. The Ceratopsia. Ceratopsia. % m Fig. 56.—Spinal cord of sacrum of Triceratops prorsus, No. 4842,-U. S. National Museum. A, Lateral view; B, superior view, a, Anterior; p, posterior. The distal caudals are longer than broad, have nearly circular extremities, and are slightly biconcave. The neural arches are proportionally higher and there are no transverse processes, as shown in fig. Fig. .57.—First caudal of Triceratops prorsus, No. 4842, U. S. National Museum, mounted skeleton. A, Side view; B, anterior view; C, posterior view, a, Anterior; p, posterior; s, neural spine; z, anterior zy
. The Ceratopsia. Ceratopsia. % m Fig. 56.—Spinal cord of sacrum of Triceratops prorsus, No. 4842,-U. S. National Museum. A, Lateral view; B, superior view, a, Anterior; p, posterior. The distal caudals are longer than broad, have nearly circular extremities, and are slightly biconcave. The neural arches are proportionally higher and there are no transverse processes, as shown in fig. Fig. .57.—First caudal of Triceratops prorsus, No. 4842, U. S. National Museum, mounted skeleton. A, Side view; B, anterior view; C, posterior view, a, Anterior; p, posterior; s, neural spine; z, anterior zygapophyses: z', posterior zygapophyses; r, rib borne on the transverse process. One-eighth natural size. After Marsh. OSSIFIED DORSAL TENDONS. In the type of Triceratops brevicornus, No. 1834, Yale Museum, there are preserved a num- ber of flattened and elongate rod-like ossified tendons, commencing with the third dorsal and continuing on either side of the neural spines as far back as the posterior dorsals. It is prob-. 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 Hatcher, J. B. (John Bell), 1861-1904; Lull, Richard Swann, 1867-1957; Osborn, Henry Fairfield, 1857-1935; Marsh, Othniel Charles, 1831-1899. Washington, Govt. Print. Off.
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