. Carnegie Institution of Washington publication. 92 A REVISION OF THE COTYLOSAURIA OF NORTH AMERICA The arrangement is shown in fig. 36, C and D. The teeth are bluntly conical with no anteroposterior cutting edges. The enlarged tooth is near the anterior end of the maxillary series. There are no enlarged teeth in the lower jaw, and in neither jaw can any trace of more than one row be made, but this is inconclusive, as such teeth would be covered if pmx pm -psq \Sft C B Fig. 36.—Pariotichus brachyops. No. 4760. Am. Mus. A. Lateral restoration of skull. X i- p>"x, premaxillary
. Carnegie Institution of Washington publication. 92 A REVISION OF THE COTYLOSAURIA OF NORTH AMERICA The arrangement is shown in fig. 36, C and D. The teeth are bluntly conical with no anteroposterior cutting edges. The enlarged tooth is near the anterior end of the maxillary series. There are no enlarged teeth in the lower jaw, and in neither jaw can any trace of more than one row be made, but this is inconclusive, as such teeth would be covered if pmx pm -psq \Sft C B Fig. 36.—Pariotichus brachyops. No. 4760. Am. Mus. A. Lateral restoration of skull. X i- p>"x, premaxillary; mx, maxillary; n, nasal; /, lachrymal; pj, pre- frontal; y, jugal; /, frontal; po, postorbital; p, parietal; sq, squamosal; psq, prosquamosal. B. Restoration of upper surface of skull. X f. Lettering as in A. C. Left side of same specimen as shown in D. D. Lateral view of skull, xf. Lettering as in A. There is no resemblance between these skulls and those of the genus Capto- rhtniis, though most of the skulls of the latter genus were originally described as Pariotichus. As they form a distinct and separate group they have been placed together in a separate family, Captorhinida. Measurements. mm Length of the type skull 22 Width of same at back 22 Length of skull of homotype Width at back 14 Isodectes megalops Cope. Characteristic specimen: A small skull, No. 4329 Am. Mus. Nat. Hist. Cope Coll. The skull is fairly well preserved and shows a fine reticulate sculpture. No palatine teeth can be made out and the teeth on the premaxillary and the anterior Fig. 37.—Jsodectes sp. A. Upper view of skull, pmx, premaxillary; mx, maxillary; n, nasal; /, frontal; ptf, postfrontal; pot, postorbital; p, parietal; /, jugal; sm, squamosal; st, prosquamosal; soc, supraoccipital plates. After Cope. B. Restoration of skull according to the author, x $ This restoration shows the skull too wide, as the bones have been placed to show their full width. Lettering as in previous figures. C Lo
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Keywords: ., bookauthorcarnegie, bookcentury1900, bookdecade1910, bookyear1911
