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Summary
Identifier: waterreptilesofp1914will
Title: Water reptiles of the past and present
Year: 1914 (1910s)
Authors: Williston, Samuel Wendell, 1851-1918
Subjects: Aquatic reptiles
Publisher: Chicago, Ill., The University of Chicago Press
Contributing Library: Boston Public Library
Digitizing Sponsor: Boston Public Library
Text Appearing Before Image:
3*N.
Text Appearing After Image:
48 WATER REPTILES OF THE PAST AND PRESENT Upper Carboniferous, or Pennsylvanian, however, not only numer-ous footprints but the actual skeletons, or impressions of skeletons,have long been known in Europe and America. Until recentlyall these footprints and skeletons were supposed to be exclusivelyamphibian. We are now almost sure that some of them belongedto reptiles of lowly type, the earliest coming from near the middleof the Pennsylvanian of Linton, Ohio. The amphibians of thisperiod were, for the most part, salamander-like creatures of from afew inches to two or three feet in length. They all belong to thegroup collectively known as the Stegocephalia, except that verynear the close of the period there appeared small, slender, small-