Elements of geology, or, The Elements of geology, or, The ancient changes of the earth and its inhabitants as illustrated by geological monuments elementsofgeolog00lyel Year: 1868 Rhynchonella (Terebralula) Wilsoni. Sow. Aymestry. which is also common to the Lower Ludlow and Wenlock limestone; 3d, Atrypa reticularis, Linn. (fig. 627), which has a very wide range, being found in every part of the Upper Silurian system, and as far down as the Lower Llandovery rocks. Fig. 62T. Fig. 628. Atrypa reticularis, Linn. (Terebraiula affinis, Min. Con.) Phragmoceras ventricosum, Aymestry. J. Sow. a. U
Elements of geology, or, The Elements of geology, or, The ancient changes of the earth and its inhabitants as illustrated by geological monuments elementsofgeolog00lyel Year: 1868 Rhynchonella (Terebralula) Wilsoni. Sow. Aymestry. which is also common to the Lower Ludlow and Wenlock limestone; 3d, Atrypa reticularis, Linn. (fig. 627), which has a very wide range, being found in every part of the Upper Silurian system, and as far down as the Lower Llandovery rocks. Fig. 62T. Fig. 628. Atrypa reticularis, Linn. (Terebraiula affinis, Min. Con.) Phragmoceras ventricosum, Aymestry. J. Sow. a. Upper valve. o. Lower valve. (Orthoceras ventricosum, Stein.) c. Anterior margin of the valves. Aymestry; a nat. size. The Aymestry Limestone contains so many shells, corals, and trilo-
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