File:The American Museum journal (c1900-(1918)) (18132985306).jpg

Title: The American Museum journal
Identifier: americanmuseumjo05amer (find matches)
Year: c1900-(1918) (c190s)
Authors: American Museum of Natural History
Subjects: Natural history
Publisher: New York : American Museum of Natural History
Contributing Library: American Museum of Natural History Library
Digitizing Sponsor: Biodiversity Heritage Library

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DEPARTMENT OF VERTEBRATE PALEONTOLOGY. ;)HE field work carried on by the Department of Ver- tebrate Plaeontology in the Bridger Badlands in 1903 was continued during the season of 1904 by another expedition under the charge of Mr. Walter Granger. Parts of the region not visited or but slightly worked the previous year were carefully explored and much valuable and important material was obtained. The Bridger beds are a Middle Eocene deposit in the south- western part of Wyoming and lie for the most part between the Union Pacific railroad and the Utah State line. They cover an area of about two thousand square miles and represent a total thickness of nearly two thousand feet. In many places through- out this area, especially along the streams, these beds are cut and weathered into rough, rugged and very picturesque badland bluffs and slopes which have yielded to collections a large variety of very interesting fossil mammals as well as remains of turtles, crocodiles, lizards, fishes and birds. The first mammals to be re- ported from these beds were described about 1870 by Dr. Leidy from specimens secured by the Hayden Survey and by people residing at Fort Bridger. Since that time the country has been searched over by various parties, notably those sent out by Yale and Princeton Universities, the American Museum and bv Pro- fessors Cope and Leidy The expedition from this Museum in 1893 which visited this locality and also the Washakie Beds, a nearly contemporaneous deposit lying some seventy-five miles to the westward, was for- tunate in securing numerous skulls and some skeletal parts of Uiniatherimn, a large rhinoceros-like animal with three pairs of horns and a very large, fiat, curved tusk or canine. This was by far the largest and miost striking of the animals of this period. There was not sufficient material with which to compose a skele- ton, however, and one of the chief objects of the expeditions of 1903 and 1904 was to secure the material necessary for a com- plete restoration of this beast, or better still a complete skeleton of one individual. The first season the party was working most of the time outside of the rather restricted area of the basin in which the uintatheres are found, but this year two important 9

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