. Bulletin - United States National Museum. Science. Fig. 67.—Pachydictya bifuecata. a and 6, two fragments, ; c, tangential section, X20, SHOWING THE DISTINCT PERISTOME, THICK WALLS, AND WIDE INTERSPACES; d, PORTION OF A TRANSVERSE SECTION, X20, WITH WELL-MARKED MEDIAN TUBXJLI. LTCKHOLM LIMESTONS (F1), KeRTEL, ISLAND OP Dago, Esthonia. The Lyckholm and Borkholm limestones contain numerous exam- ples of a narrow, parallel edged Pachydictya which agrees in all of its characters with a common American Clinton species described by. Please note that these images are extracted from scanned page
. Bulletin - United States National Museum. Science. Fig. 67.—Pachydictya bifuecata. a and 6, two fragments, ; c, tangential section, X20, SHOWING THE DISTINCT PERISTOME, THICK WALLS, AND WIDE INTERSPACES; d, PORTION OF A TRANSVERSE SECTION, X20, WITH WELL-MARKED MEDIAN TUBXJLI. LTCKHOLM LIMESTONS (F1), KeRTEL, ISLAND OP Dago, Esthonia. The Lyckholm and Borkholm limestones contain numerous exam- ples of a narrow, parallel edged Pachydictya which agrees in all of its characters with a common American Clinton species described by. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States National Museum; Smithsonian Institution; United States. Dept. of the Interior. Washington : Smithsonian Institution Press, [etc. ]; for sale by the Supt. of Docs. , U. S. Govt Print. Off.
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Keywords: ., bookauthorun, bookcentury1800, bookdecade1870, booksubjectscience
