. Elements of geology : a text-book for colleges and for the general reader. Geology. SILURIAN ANIMALS. 309 called graptolites. Sometimes the cells are arranged on one side of the axis, sometimes on both sides, sometimes the axis is divided. What- ever be their affinities, they are of great importance, inasmuch as they are entirely characteristic of the Silurian age, and those tvith cells on both sides, of the Lower Silurian and Cambrian. The twin graptolites (Fig. 315) are also wholly characteristic of Lower Please note that these images are extracted from scanned page images that
. Elements of geology : a text-book for colleges and for the general reader. Geology. SILURIAN ANIMALS. 309 called graptolites. Sometimes the cells are arranged on one side of the axis, sometimes on both sides, sometimes the axis is divided. What- ever be their affinities, they are of great importance, inasmuch as they are entirely characteristic of the Silurian age, and those tvith cells on both sides, of the Lower Silurian and Cambrian. The twin graptolites (Fig. 315) are also wholly characteristic of Lower 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.
Size: 1234px × 2025px
Photo credit: © Paul Fearn / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectgeology, bookyear1892
