Notice of remains of extinct Vertebrata, from the valley of the Niobrara river / by Joseph Leidy.
- Joseph Leidy
- Date:
- 1858
Licence: Public Domain Mark
Credit: Notice of remains of extinct Vertebrata, from the valley of the Niobrara river / by Joseph Leidy. 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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![NOTICE OF KEMAINS OF EXTINCT VERTEBRATE. WASHiNGTOir, (D. C.) March 8, 1858. ■ ipt. A. A. Humphreys, T. E., Ch'ge Off. Expl. and Surreys. Sie: Professor Joseph Leidy has prepared a Notice of Remains of Extinct Vertebrates, constituting twenty-eight new species, collected by Dr. Hayden along the Niobrara River, on the Expedition placed under my command by the War Department, during the past summer, which, it is desii-able, should be published at once in the Proceedings of the Academy of Natural Sciences of I'hiladelphia. The permission of the Honorable Secretary of War, to make the ])ublication, is requested. Very respectfully, sir, your obedient servant, Or. K. Warren, Lieut. Top. Eng'rs. Submitted to the Secretary of War. Tlie publication is approved by him. A. A. Humphreys, Capt. Top. Eng'rs. in Charge. Notice of Remains of Extinct Vertebrata, from the Valley of the Niobrara River, collected during the Exploring Expedition of 1857, in Nebraska, under the command of Lieut. G. K. Warren, TJ. S. Top. Eng., by Dr. F. V. Hayden, Geolo- gist to the Expedition. BY JOSEPH LEIDY, M. D. During the Exploring Expedition of the last year in Nebraska, under the 'command of Lieut. G. K. Warren, the Geologist of the Expedition, Dr. F. V. Hayden collected a number of remains of mammals and turtles, from a deposit, ill the valley of the Niobrara River (Swift-running-water; L'eau-qui-court), wliich lie suspects to be of pliocene age. Tlio collection is an exceedingly in- teresting and important one ; and the anatomical characters of the specimens aapport the opinion of their disco'^erer, that the formation, from which they Were obtained, belongs to the later tertiary period. Tl»e extinct fauna of the Niobrara is especially rich in remains of ruminating and equine animals. Among the former are several peciiliar genera, of which ■^''^'0 closely allied to Oreodon and Leptauchenia, of the miocone deposit of the Mauvaises Terres: one is allied to the Musk-deer, and another closely ap- proaches the Camel. Besides the remains of a true species of Equus, the col-](https://iiif.wellcomecollection.org/image/b22268923_0005.jp2/full/800%2C/0/default.jpg)
