. Dinocerata : a monograph of an extinct order of gigantic mammals. Dinocerata; Mammals, Fossil; Paleontology; Paleontology. 82 DINOCERATA. The Second Dorsal Vertebra. (Plate XXIII; and woodcuts 99-100, below.) The second dorsal vertebra in Dinoceras mirahile (number 1255) is especially distinguished from the one last described by the neural spine, which is massive, and more inclined backward. The neural canal is sub-triangular in outline. Tlie pre-zygapophyses are much smaller, less elevated, and look more directly upward. The centrum is somewhat longer than that of the first dorsal, and more
. Dinocerata : a monograph of an extinct order of gigantic mammals. Dinocerata; Mammals, Fossil; Paleontology; Paleontology. 82 DINOCERATA. The Second Dorsal Vertebra. (Plate XXIII; and woodcuts 99-100, below.) The second dorsal vertebra in Dinoceras mirahile (number 1255) is especially distinguished from the one last described by the neural spine, which is massive, and more inclined backward. The neural canal is sub-triangular in outline. Tlie pre-zygapophyses are much smaller, less elevated, and look more directly upward. The centrum is somewhat longer than that of the first dorsal, and more expanded transvei'sely. This vertebra is represented in Plate XXIII. The second dorsal vertebra of Dinoceras mirahile (number 1212) has the neural spine still more massive, the neural canal more expanded transversely, and the articular faces of the centrum more nearly circular, as shown in figures 99 and 100, below. In the genus Tinoceras, the second dorsal presents the same general features as in the vertebra above 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 Marsh, Othniel Charles, 1831-1899. Washington : United States Geological Survey : G. P. O.
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Keywords: ., bookcentury1800, bookdecade1880, booksub, booksubjectpaleontology
