. Elements of geology : a text-book for colleges and for the general reader. Geology. 324 PALAEOZOIC SYSTEM OF ROCKS. reached their maximum of development, in size, number, and variety, in the Silurian. Barrande gives the number of species described in the Silurian alone as 1,579. They reached in some cases a size equal to any crustaceans now living. The Asaphus (Isotelus) gigas, from the Lower Silurian (Fig. 380), was sometimes twenty inches in length and thir-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - colorat
. Elements of geology : a text-book for colleges and for the general reader. Geology. 324 PALAEOZOIC SYSTEM OF ROCKS. reached their maximum of development, in size, number, and variety, in the Silurian. Barrande gives the number of species described in the Silurian alone as 1,579. They reached in some cases a size equal to any crustaceans now living. The Asaphus (Isotelus) gigas, from the Lower Silurian (Fig. 380), was sometimes twenty inches in length and thir-. 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 LeConte, Joseph, 1823-1901. New York : D. Appleton and Co.
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectgeology, bookyear1892
