. Bulletin - United States National Museum. Science. Fig. 64.—Pachydictta flabellum. a, tangential section, X20, theough an old portion of the zoarium; b, another tangential section, X20, sho"wing the appearance in the early portion of the mature zone; c, tangential section of a young example, x20, "with open mesopores; d, the usual aspect of vertical sections, x20; e, vertical section, x20, of young speamen. Wesenberg limestone (E), Wesenberg, Esthonia. PACHYDICTYA CYCLOSTOMOIDES (Eichwald). Text figs. 65, 66. Micropora cyclostomoides Eichwald, Bull. Soc. Nat. Moscou, No. 4, 1855, p
. Bulletin - United States National Museum. Science. Fig. 64.—Pachydictta flabellum. a, tangential section, X20, theough an old portion of the zoarium; b, another tangential section, X20, sho"wing the appearance in the early portion of the mature zone; c, tangential section of a young example, x20, "with open mesopores; d, the usual aspect of vertical sections, x20; e, vertical section, x20, of young speamen. Wesenberg limestone (E), Wesenberg, Esthonia. PACHYDICTYA CYCLOSTOMOIDES (Eichwald). Text figs. 65, 66. Micropora cyclostomoides Eichwald, Bull. Soc. Nat. Moscou, No. 4, 1855, p. 459; Lethaea Rossica, vol. 1, 1860, p. 394, pi. 24. fig. 16 a, h. Eichwald's figures of Micropora cyclostomoides clearly indicate a broad, branching species of PacJiydictya, with rather large apertures. His types were registered from the "calcaire a Orthoceratites de Wesenberg et d'; This would imply, although not necessarily. 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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