. riGURB t.âSkull of Dinnceras mirabile, Marsh (No. 1036); with brain-cast in natural position; seen from above. Figure 8.âThe same view of a young specimen ol Dinoceras distans, Marsli (So. 1601). /â . frontal bone; m. maxillary bone; m'. maxillary protuberance ; b. nasal bone; n'. nasal protuberance; p. parietal bone; p'. parielal protuberance; pm. premaxillary bone; s. supra-occipital crest. Both figures are one-eighth natural size. When separate, they are subquadrate in form, flattened on the median line where they meet each other; and rugose posteriorly, for sutural union with the nasals.
. riGURB t.âSkull of Dinnceras mirabile, Marsh (No. 1036); with brain-cast in natural position; seen from above. Figure 8.âThe same view of a young specimen ol Dinoceras distans, Marsli (So. 1601). /â . frontal bone; m. maxillary bone; m'. maxillary protuberance ; b. nasal bone; n'. nasal protuberance; p. parietal bone; p'. parielal protuberance; pm. premaxillary bone; s. supra-occipital crest. Both figures are one-eighth natural size. When separate, they are subquadrate in form, flattened on the median line where they meet each other; and rugose posteriorly, for sutural union with the nasals. These pre-nasal bones appear to be homologous Avith the ossicle sometimes found at the â extremity of the snout in suillines, especially in the genus Sus.
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Keywords: ., bookcentury1800, bookdecade1880, booksub, booksubjectpaleontology
