Bulletin - United States Geological Survey, Ausgabe 211

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Seite 123 - Dunkard formation, whose flora was fully treated by Professors Fontaine and IC White.'' Yet the small flora from Onaga contains none of the special types or characteristic Permian forms which are present in the Dunkard, and on account of which the greater part of the Dunkard is regarded as Permian.
Seite 68 - NOMENCLATURE EMPLOYED. Nomenclature, coupled with claims of priority, is the bane of the scientist. In the true sense of the term it is almost impossible for anyone to introduce new names without being liable to do an injustice to his predecessors. The history...
Seite 123 - No species in any way characteristic of the Lower Coal Measures or the Allegheny formation remains. On the other hand, the ferns, either as individual species or as phases of species having wide range, are clearly indicative of a stage at least very high in the Upper Carboniferous (Pennsylvanian). Nearly all the species have been reported from either the Permian of Europe or the Dunkard formation of the United States, though, with the possible exception of Pecopteris Newberriana, none are distinctly...
Seite 71 - Adams states that — the distinctions which have thus far been outlined in Kansas do not hold when the rocks are followed southwestward along their strike into the Indian Territory. Approximately along the Arkansas River, or a little south of that stream, the interstratified limestones disappear from the section, and the formations are accordingly shales and sandstones. Moreover, the rocks in the Indian Territory gradually assume a red color in the higher portion of the section, the line of transition...
Seite 64 - ... Perkins had it some 700 feet above its horizon. In Bulletin 211 of the United States Geological Survey, page 64, Adams refers to Drake's Pawnee limestone as follows : This formation was named by Drake. It is the limestone which outcrops on the east side of the courthouse grounds at Pawnee, Oklahoma. Its line of outcrop was not mapped. The name Pawnee is preoccupied by the Pawnee limestone of Swallow in the Kansas section. This limestone cannot now be correlated with the Kansas section. In 1910...
Seite 36 - ... US Geol. Survey, Bull. 211, p. 36. Adams states: "The name Mound Valley limestone was proposed in 1896 for the limestone exposed in the hills northwest of Mound Valley (Adams, Kan. Univ. Geol. Survey, vol. 1, p. 23, 1896), and the bed was correlated with the middle member of the Erie (same, p. 25). The formation as exposed at Cherry.vale had been previously described but not named, and had been incorrectly correlated with the Oswego of Haworth (Kan. Univ. Quart., vol. 2, p. 118, 1894). The name...

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