. The ancient life-history of the earth; a comprehensive outline of the principles and leading facts of palæontological science. Paleontology. THE CRETACEOUS PERIOD. 271 The Univalves {Gasteropods) of the Cretaceous period are not very numerous, nor particularly remarkable. Along with species of the persistent genus Pleiirotomaria and the Meso-. Fig. 199.—HippJirites Toucasiana. A large individual, with two smaller ones attached to it. Upper Cretace- ous, South of Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability

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. The ancient life-history of the earth; a comprehensive outline of the principles and leading facts of palæontological science. Paleontology. THE CRETACEOUS PERIOD. 271 The Univalves {Gasteropods) of the Cretaceous period are not very numerous, nor particularly remarkable. Along with species of the persistent genus Pleiirotomaria and the Meso-. Fig. 199.—HippJirites Toucasiana. A large individual, with two smaller ones attached to it. Upper Cretace- ous, South of 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 Nicholson, Henry Alleyne, 1844-1899. Edinburgh, London, Blackwood

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Keywords: ., bookaut, bookcentury1800, bookdecade1870, booksubjectpaleontology