. Elements of geology, or, The ancient changes of the earth and its inhabitants as illustrated by geological monuments. Geology. 528 FOSSILS OF THE [Oh. XXVI. so that it covers about 25 square feet of ground; and the Limulus Moluccanus, the great King Crab of China and the eastern seas, which, when adult, measures 1 J- foot across its carapace, and is 3 feet -in length. Parka decipiens.—In the same gray paving-stones and coarse roof- ing-slates in which the Cephalaspis and Pterygotus occur, in Forfar- shire and Kincardineshire, the remains of grass-like plants abound in such numbers as to be u
. Elements of geology, or, The ancient changes of the earth and its inhabitants as illustrated by geological monuments. Geology. 528 FOSSILS OF THE [Oh. XXVI. so that it covers about 25 square feet of ground; and the Limulus Moluccanus, the great King Crab of China and the eastern seas, which, when adult, measures 1 J- foot across its carapace, and is 3 feet -in length. Parka decipiens.—In the same gray paving-stones and coarse roof- ing-slates in which the Cephalaspis and Pterygotus occur, in Forfar- shire and Kincardineshire, the remains of grass-like plants abound in such numbers as to be useful to the geologist by enabling him to identify corresponding strata at distant points. Whether these be fucoids, as I formerly conjectured, or freshwater plants of the family Pluviales, as some botanists suggest, cannot yet be determined. They are often accompanied by fossils, called " berries" by the quarrymen, and which are not unlike the form which a compressed blackberry or raspberry might assume (see figs. 592 and 593). Some of these were first observed in the year 1828, in gray sandstone of the same age as that of Forfarshire, at Parkhill near Newburgh, in the north of Fife, by Dr. Fleming. I afterwards found them on the north side of Strathmore, in the vertical shale beneath the conglom- erate, and in the same beds in the Sidlaw Hills, at all points where fig. 4 is introduced in the section, p. 48. Dr. Fleming has compared these fossils to the panicles of a Juncus, or the catkins of Sparganium, or some allied plant, and he was con- firmed in this opinion by finding a specimen at Balrudderie, showing the under surface smoother than the upper, and displaying what may Fig. 592. Fisr. 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. Appleto
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Keywords: ., bookcentury1800, bookdecade1860, booksubjectgeology, bookyear1868
