Synopsis
This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1845 Excerpt: ...branches, and in entirely wanting transverse veins, so that they are not Panorpa. It is, therefore, to be regretted that the above name was so hastily applied, especially as it has long been known that a special work was about to appear upon the subject. or two leaves of Ferns (Otopteris obtusa) have been met with. The yellow "Cypris Limestone" (N0. 6), which lies about twenty feet above the "Bone bed," is a hard nodular stratum, and bears a strong mineralogical resemblance to the Muschelkalk. It has a very uneven and irregular fracture, and is waved and variegated like the "Landscape stone" of Somersetshire, which it very probably represents. This bed is described at a future page; where I have entered into some details respecting its position, structure, and organic contents in the more immediate neighbourhood of Bristol, where it is largely developed. The fossils from this bed are the more interesting from their supposed resemblance to some which occur in the Wealden. Mr. Sowerby having examined them, thought that the bivalve shell might be a Oyclas; and as he saw nothing to distinguish the 0'3/pris from those in that formation, he concluded that in all probability it was of fresh-water origin. This opinion seems to be confirmed by the apparently fluviatile character of the Plants which accompany them. This supposed Cyclas also bears a close resemblance to the genus Posidonomya, which characterizes the Keuper sandstone; and Mr. Strickland has observed a bivalve in the Lias of Worcestershire, which is identical with the one in the yellow "Cypris Limestone" (No. 6 of section, page 58); its real genus therefore at present is somewhat doubtful. This shell is generally found singly, but sometimes in masses sufii...
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