. The Ceratopsia. Ceratopsia. THE SKULL. 29 they give rise to thin, plate-like expansions which are embraced at their posterior end by the pterygoid bones. Dorsallv viewed the vomer is seen to become trough-like, the depression being about the width of the shaft of the bone and running the length of the expanded posterior portion. There is no trace of paired elements in the vomer. I reproduce here Lull's figure of a palatal view of the skull, showing the vomer in position. I can not agree with Lull's statement that "there is no trace of paired elements in the. Please note that these image
. The Ceratopsia. Ceratopsia. THE SKULL. 29 they give rise to thin, plate-like expansions which are embraced at their posterior end by the pterygoid bones. Dorsallv viewed the vomer is seen to become trough-like, the depression being about the width of the shaft of the bone and running the length of the expanded posterior portion. There is no trace of paired elements in the vomer. I reproduce here Lull's figure of a palatal view of the skull, showing the vomer in position. I can not agree with Lull's statement that "there is no trace of paired elements in the. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Hatcher, J. B. (John Bell), 1861-1904; Lull, Richard Swann, 1867-1957; Osborn, Henry Fairfield, 1857-1935; Marsh, Othniel Charles, 1831-1899. Washington, Govt. Print. Off.
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Keywords: ., bookcentury1900, bookdecade1900, bookpublisherwashingtongovtprin
