J. B. Hatcher. 1903. Osteology of Haplocanthosaurus, with description of a new species, and remarks on the probable habits of the Sauropoda and the age and origin of the Atlantosaurus Beds. Memoirs of the Carnegie Museum 2(1):1-72 This monograph has been scanned as two separate PDFs: Text Plates You will need both to have the complete article. Article scanned as part of the Dinosaur Digital Library Project, a for-research-only resource since 2004. This PDF is fully text searchable. Text and line drawings are scanned at 300dpi, plates at 600 dpi. This allows you to see each individual ink dot for faithful reproduction when printing for research. Skewed preview (left) absent in actual PDF. Clicking "The dinosaur digital library project" under the publisher link should bring up other titles that have been uploaded as part of the project. This scan by D. W. Fowler.