. Figure ] 1. —6kuU of latifivns, Marsh (No. 1231); seen from aljove. Figure 12.—Same view of skull of Tinoceras vagans, Marsh (ISTo. 1241). /. frontal bone; m. mamillary bone; m'. maxillary protuberance; 7i. nas 1 bi^ne; »'. nasal protuberance p. parietal bone; p'. parietal protuberance; pm. premaxillary bone; s. supraoccipital crest. Both figures are one-eighth natural sue. The position of this suture, and also that uniting the frontals with the nasals, and the latter with their adjoining bones, is well shown in figure 8, page 15, which represents the young specimen (number 160
. Figure ] 1. —6kuU of latifivns, Marsh (No. 1231); seen from aljove. Figure 12.—Same view of skull of Tinoceras vagans, Marsh (ISTo. 1241). /. frontal bone; m. mamillary bone; m'. maxillary protuberance; 7i. nas 1 bi^ne; »'. nasal protuberance p. parietal bone; p'. parietal protuberance; pm. premaxillary bone; s. supraoccipital crest. Both figures are one-eighth natural sue. The position of this suture, and also that uniting the frontals with the nasals, and the latter with their adjoining bones, is well shown in figure 8, page 15, which represents the young specimen (number 1601) above referred to. In Dinoceras mirabile (number 1036), the frontals are comparatively thin in front where they join the nasals. Over the orbits, they become 3
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Keywords: ., bookcentury1800, bookdecade1880, booksub, booksubjectpaleontology
