Notes on Mesozoic vertebrate fossils / by O.C. Marsh.
- Othniel Charles Marsh
- Date:
- 1892
Licence: Public Domain Mark
Credit: Notes on Mesozoic vertebrate fossils / by O.C. Marsh. Source: Wellcome Collection.
Provider: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.
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![By O. C. Marsh. \\n il I'LATKS II \ . Thr extensive collections of verteln-ate fossils from tlie Laramie now under investicjation by the writer contain, besides those already described, many specimens of mnch interest, and some of these are briefly noticed and Hin-ured in the present article. The Dhwmvria of this formation are of special importance, particularly in their relations to allied forms in the Jurassic, and hence some of the latter, also, are figured for comparison. Claosdnrus^ Marsli, IRIM). Next in importance to the Ceratopsnlw of the Laramie are the Dinosaurs allied to I/aJromtfrufi, and, ;is but little is really known of the skeleton in this f>roup, some of the im]>ortant parts are liere described, and hgured in Plates II and III. These arc mainly from a single specimen which is in remarkable preservation ; but the remains of a second indi- vidual, likewise in good condition, and in some respects more perfect, have also been used in the investigation. The species is Claosaurus anncctens^ already briefly described by the writer.* The skull will be described in a later communication. The number of vertebrae between the skull and sacrum is thirty, and all were found in position. There are nine vertebrae in the sacrum, thoroughly coossified with each other. The anterior forty-five vertebra*, of the t;ii1 were found in position, and in good preservation.. *This JonmnI, vol. xliii. p. May, 1892.](https://iiif.wellcomecollection.org/image/b22273037_0005.jp2/full/800%2C/0/default.jpg)
