. Elements of geology, or, The ancient changes of the earth and its inhabitants as illustrated by geological monuments. Geology. Ch. XX.] BRADFORD EXCRIXITEB. 403 tered at random through, the argillaceous deposit in which some now lie prostrate. These appearances are represented in the section b, fig. 402, where the darker strata represent the Bradford clay, which some Fiar. Apiocrinites rotundus, or Pear Encrinite ; Miller. Fossil at Bradford, Wilts. a. Stem of Aplocrinites, and one of the articulations, natural size. b. Section at Bradford of Great Oolite and overlying clay, containing
. Elements of geology, or, The ancient changes of the earth and its inhabitants as illustrated by geological monuments. Geology. Ch. XX.] BRADFORD EXCRIXITEB. 403 tered at random through, the argillaceous deposit in which some now lie prostrate. These appearances are represented in the section b, fig. 402, where the darker strata represent the Bradford clay, which some Fiar. Apiocrinites rotundus, or Pear Encrinite ; Miller. Fossil at Bradford, Wilts. a. Stem of Aplocrinites, and one of the articulations, natural size. b. Section at Bradford of Great Oolite and overlying clay, containing the fossil encrinites. See text. c. Three perfect individuals of Apiocrinites, represented as they grew on the surface of the Great Oolite. d. Body of the Apiocrinites rotundus. geologists class with the Forest Marble, others with the Great Oolite. The upper surface of the calcareous stone below is completely en- crusted over with a continuous pavement, formed by the stony roots or attachments of the Crinoidea; and besides this evidence of the length of time they had lived on the spot, we find great numbers of single joints, or circular plates of the stem and body of the encrinite, covered over with serpulce. Now these serpulce could only have 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
