. Fig. 27—Sbull of IKplodociis long-us Marsh : seen from below. One-sixth natural size. 6. basioccipital process; eo, exoccipital; vi, maxillary; mp, maxillary plate; o, occipital condyle; p, palatine; pm. premaxillary; pt, pterygoid: pa, parasphenoid; q, quadrate; t, transverse bone; v, vomer. The quadrate is elongated and slender, with its lower end projecting' very much forward. In front it has a thin plate extending inward and overlapping the posterior end of the pterygoid. The quadratojugalis an elongate bone, firmly attached posteriorly to the quadrate by its expanded portion. In front o
. Fig. 27—Sbull of IKplodociis long-us Marsh : seen from below. One-sixth natural size. 6. basioccipital process; eo, exoccipital; vi, maxillary; mp, maxillary plate; o, occipital condyle; p, palatine; pm. premaxillary; pt, pterygoid: pa, parasphenoid; q, quadrate; t, transverse bone; v, vomer. The quadrate is elongated and slender, with its lower end projecting' very much forward. In front it has a thin plate extending inward and overlapping the posterior end of the pterygoid. The quadratojugalis an elongate bone, firmly attached posteriorly to the quadrate by its expanded portion. In front of the quadrate it forms for a short distance a slender bar, which is the lower temporal arcade. The palate is very high and roof like, and composed chiefly of the pterygoids, as shown above in fig. 27. The basipterygoid processes are- elongate, much more so than in the other genera of Sauropoda. The TJterygoids have a shallow cavity for the reception of these proc- esses, but no distinct impression for a columella. Immediately in front of this cavity the pterygoids begin to expand, and soon form a broad, flat plate, which stands nearly vertical. Its upper border is thin, nearly straight, and extends far forward. The anterior end is acute and unites aloDg its inferior border with the ; A little in front of the middle. 16 geol, pt 1 12
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Keywords: ., bookcentury1800, bookdecade1890, bookpublisherwashi, bookyear1896
