RT Journal Article SR Electronic T1 On the occurrence of a tree-like fossil plant, Glyptodendron, in the Upper Silurian (Clinton) rocks of Ohio JF American Journal of Science JO Am J Sci FD American Journal of Science SP 302 OP 304 DO 10.2475/ajs.s3-15.88.302 VO s3-15 IS 88 A1 Edward Waller Claypole YR 1878 UL http://www.ajsonline.org/content/s3-15/88/302.abstract AB