Annual report of the United States Geological Survey to the Secretary of the Interior . CYCADELLA EXOGENA FROM THE JURASSIC OF WYOMING LIBRARY OF THE UNIVERSITY ef ILLINOIS. PLATE CXXXI. PLATE CXXXI. Page. Cycadella exogena Ward 404 View of the base of the nearly complete trunk resulting from the unionof Nos. and 500,61 of the Museum of the University of Wyoming,(a) No. ; (b) No. • 652. LIBRARY OF THE UNIVERSITY of ILLINOIS. \ PLATE CXXXII. P L A T E C X X X11. Page. Cyadella Ward 404 Longitudinal and transverse views of the trunk Xos. and of the Mus
Annual report of the United States Geological Survey to the Secretary of the Interior . CYCADELLA EXOGENA FROM THE JURASSIC OF WYOMING LIBRARY OF THE UNIVERSITY ef ILLINOIS. PLATE CXXXI. PLATE CXXXI. Page. Cycadella exogena Ward 404 View of the base of the nearly complete trunk resulting from the unionof Nos. and 500,61 of the Museum of the University of Wyoming,(a) No. ; (b) No. • 652. LIBRARY OF THE UNIVERSITY of ILLINOIS. \ PLATE CXXXII. P L A T E C X X X11. Page. Cyadella Ward 404 Longitudinal and transverse views of the trunk Xos. and of the Museum of the University of 1. Central longitudinal fracture of No. Fig. 2. Transverse fracture of No. , showing the exogenous struc-ture. 654 J U. S. GEOLOGICAL SURVEY Twentieth annual hepoRt part ii pl. cxxxii
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