. Elements of geology, or, The ancient changes of the earth and its inhabitants as illustrated by geological monuments. Geology. a. Fenestella retiformis, Schlot. sp. Syn. Gorgonia infundibuliformis, Goldf.; Betepora ftustracea, Phillips. o. Part of the same highly magnified. Magnesian Limestone, Hnmbleton Hill, near Sunderland.* variable species, and has received many different names. It some- times attains a large size, measuring 8 inches in width. The same zoophyte, or rather mollusk, with several other British species, is also found abundantly in the Permian of Germany. Shells of the gener
. Elements of geology, or, The ancient changes of the earth and its inhabitants as illustrated by geological monuments. Geology. a. Fenestella retiformis, Schlot. sp. Syn. Gorgonia infundibuliformis, Goldf.; Betepora ftustracea, Phillips. o. Part of the same highly magnified. Magnesian Limestone, Hnmbleton Hill, near Sunderland.* variable species, and has received many different names. It some- times attains a large size, measuring 8 inches in width. The same zoophyte, or rather mollusk, with several other British species, is also found abundantly in the Permian of Germany. Shells of the genera Productus (fig. 496) and Strophalosia (the latter of allied form with teeth in the hinge), which do not occur in Fig. Fig. 49T. Producing horridus, Sowerby Lingula Crednerii. (including P. ealvus, Sow.) Sunderland and Durham, in Mag- nesian Limestone; Zechstein and Kupferschiefer, Germany. (Geinitz.) Magnesian. Limestone; Marl-slate Durham; Zechstein, Thuringia. Fig. 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 Lyell, Charles, Sir, 1797-1875. New York, D. Appleton and co.
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Keywords: ., bookcentury1800, bookdecade1860, booksubjectgeology, bookyear1868
