The Dinosaurs of Wyoming - Wyoming State Geological Survey ...

38 THE DINOSACRS OF WYOMING
The hugest of these had to be lifted fifty feet out ofa vertical
ravine, and hauled 40 miles to the railroad over a trackless
country and across unknown streams. Hatcher revolutionized
the collecting of fossil vertebrates, introducing many new
procedures. He was later assigned the task of completing the
memoir on the Ceratopsia, which he did not live to complete.
While not a highly educated man, Hatcher trained himself by
observation and reading so that he was able to write a number
of valuable scientific papers relating to stratigraphy and vertebrate
paleontology. His work at Princeton was on the
fossil mammals of Patagonia, and at the Carnegie Museum he
assembled from Colorado and Wyoming important sauropod
skeletons, at present mounted in the Museum.
Professor R. S. Lull, director of the Peabody Museum and
Professor of Paleontology at Yale University, has enhanced
the value of the dinosaur collections left by Marsh, by numerous
scientific papers, memoirs and the completion of the monograph
on Ceratopsia, as well as by further collecting. His
revision of dinosaur footprints from the eastern Triassic is a
monument of industry in a difficult field.
Professor E. D. Cope, of Philadelphia, sent expeditions
into the west after 1869. One collector he employed, J. L.
Wortman, rose to an independent position in science by his
sagacity and application. Cope's large dinosaurs came in part
from Colorado, as well as other states. His quarry at Garden
Park, Colorado, was still open in 1907 when I visited it. All
of Cope's collections were acquired through purchase by the
American Museum of Natural History and the sauropod skeletons
are being restudied.
Realizing the importance of the finds being made in Wyoming
Professor Wilbur C. Knight conducted successful expeditions
into the dinosaur fossil beds for the museum at the
University of Wyoming. The aquatic reptiles, called plesiosaurs,
attracted his attention and he described these in a short
series of scientific papers.
The Field Museum of Tatural History, at Chicago, possesses
a good collection of sauropod dinosau"rs, collected and
prepared under the supervision of E. S. Riggs, whose teacher
in paleontology was Williston at Kansas University. Riggs
collected in Colorado and eastern Wyoming, making a noteworthy
discovery of a dinosaur whose fore lim bs were longer
than the hind limbs: the upper arm bone measuring nearly
seven feet in length. A partial skeleton of Brontosaurus is
mounted in Field Museum.
The Carnegie Museum, at Pittsburgh, has a noteworthy
collection of dinosaurian material, collected in part from Wyo-