. The Quarterly journal of the Geological Society of London. Proximal end. Distal end. Tympanic bone of Mosasaurus Hoffmanni, X \. is 4 inches, the short diameter is 1 inch 9 lines at the middlepart, narrowing to each end, and chiefly to the inner (mesial) articular surface, fig. 12, g, is convex both lengthwise andacross, and smoother than the upper surface. It is not concavo-convex for a ginglymoid joint, as in Python, but forms the ballof a simple ball-and-socket joint. There is a tuberosity, fig. 10, Jc,for the ligamentous attachment of the end of the pterygoid behindand above the
. The Quarterly journal of the Geological Society of London. Proximal end. Distal end. Tympanic bone of Mosasaurus Hoffmanni, X \. is 4 inches, the short diameter is 1 inch 9 lines at the middlepart, narrowing to each end, and chiefly to the inner (mesial) articular surface, fig. 12, g, is convex both lengthwise andacross, and smoother than the upper surface. It is not concavo-convex for a ginglymoid joint, as in Python, but forms the ballof a simple ball-and-socket joint. There is a tuberosity, fig. 10, Jc,for the ligamentous attachment of the end of the pterygoid behindand above the mandibular articular surface. The fore part of the tympanic is chiefly formed by the tympanicplate, which there shows a broad, smooth, slightly sinuous surface;the hind part is chiefly formed by the deflected portion of the mastoidsurface above, and by the mandibular surface below. The inner (me-sial) side of the bone is the narrowest, and shows a smooth ellipticcavity, fig. 10, i, with a sharp border, 10 lines by 7 lines in outletdiameters and 5 lines in
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Keywords: ., bookcentury1800, bookdecade1840, bookidquarte, booksubjectgeology
