. The Devonian of Missouri. Geology; Geology, Stratigraphic; Paleontologie; Devoon. 50 THE DEVONIAN OF MISSOURI. cent., in thicker specimens sometimes as many as one hundred and fifty can be counted. Tabulae small, flat in the centre, bent down at the edge, rendered vesiculose by the introduction of cystose plates and generally somewhat disturbed in their regularity by the inner ends of the septa, confined to a central zone varying in breadth from about one-fourth to one-third of the entire diameter of the corallum. Vesicles filling the septal interspaces outside the tabulate zone, small, stro
. The Devonian of Missouri. Geology; Geology, Stratigraphic; Paleontologie; Devoon. 50 THE DEVONIAN OF MISSOURI. cent., in thicker specimens sometimes as many as one hundred and fifty can be counted. Tabulae small, flat in the centre, bent down at the edge, rendered vesiculose by the introduction of cystose plates and generally somewhat disturbed in their regularity by the inner ends of the septa, confined to a central zone varying in breadth from about one-fourth to one-third of the entire diameter of the corallum. Vesicles filling the septal interspaces outside the tabulate zone, small, strongly curved with their convex sides upward, resting on each other and against the sides of the septa, their general direc- tion being upward and outward at right angels to that of the arched carinae of which they are independent in their ; Remarks—This species is rare in the Callaway limestone and all of the specimens are imperfect. The carinae are badly weathered on the surface, and are difficult to distinguish. One specimen is 6 cm. wide at the top and 15 cm. long, with both ends practically complete. Another specimen of the same width is 18 cm. long, and the lower end is broken away. The longitudinal section shown in figure 4 is diagrammatic. It was impossible to get a section that was not highly complicated and the reticulate network was filled in from a small area. The right side of the central part which shows the tabulae was broken during the sectioning. The cross section shown in figure 1 was made from the smaller end of the specimen 18cm. Fig. 2. Sections of Cyathophyllum halli (Edwards and Haime. 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 Branson, E. B. (Edwin Bayer), 1877-1950; Tansey, Vivian Ouray; Stewart, Grace Anne, 1893-. Rolla, Mo. , Missouri Bureau of Geology
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectgeology, bookyear1922
