. Bulletin. Natural history; Natuurlijke historie. 11 12 13 14 Fig. 11. First dorsal vertebra of Eporeodon socialis Marsh. Fig. 12. Fifth lumbar vertebra of Eporeodon socialis Marsh. Fig. 13. Second caudal vertebra of Eporeodon socialis Marsh. Fig. 14. Thirteenth caudal vertebra of Eporeadon socialis Marsh, Cotype Cat. No. 13119 xVz- Eporeodon except the first, and in both genera in the posterior five or six they project from the anterior articular processes. The dorsal spines of both are broad and long. In Eporeodon they extend backward to the eleventh vertebra, which may be termed the


. Bulletin. Natural history; Natuurlijke historie. 11 12 13 14 Fig. 11. First dorsal vertebra of Eporeodon socialis Marsh. Fig. 12. Fifth lumbar vertebra of Eporeodon socialis Marsh. Fig. 13. Second caudal vertebra of Eporeodon socialis Marsh. Fig. 14. Thirteenth caudal vertebra of Eporeadon socialis Marsh, Cotype Cat. No. 13119 xVz- Eporeodon except the first, and in both genera in the posterior five or six they project from the anterior articular processes. The dorsal spines of both are broad and long. In Eporeodon they extend backward to the eleventh vertebra, which may be termed the "anticlinal vertebra" or "center of ; These spines diminish in size posteriorly to about the eleventh. In Sus the first dorsal spine extends slightly forward, the others back- ward to the tenth, which is the anticlinal, and the posterior vertebrae again project forward. They also decrease in width and length to the tenth, beyond which they are nearly equal in height. The superior edges of the spines are slightly enlarged in 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 Peabody Museum of Natural History. New Haven : The Museum


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