. The ancient life-history of the earth; a comprehensive outline of the principles and leading facts of palæontological science. Paleontology. Fig. 135.—Brachiopods of the Permian formation, a, Producta hornda; l\ Lingnia Crediteri; c, Terebratiila eloiigata ; d e, CamaropJwria globulina. (After King.) Upon the whole, the most characteristic Permian Bradiiopods belong to the genera Produda, Strophalosia, and Camaro- phoria. The Bivalves [Lamdlibi'andiiatd) have a tolerably varied development in the Permian rocks; but nearly all the old types, except some of those which occur in the Carbon
. The ancient life-history of the earth; a comprehensive outline of the principles and leading facts of palæontological science. Paleontology. Fig. 135.—Brachiopods of the Permian formation, a, Producta hornda; l\ Lingnia Crediteri; c, Terebratiila eloiigata ; d e, CamaropJwria globulina. (After King.) Upon the whole, the most characteristic Permian Bradiiopods belong to the genera Produda, Strophalosia, and Camaro- phoria. The Bivalves [Lamdlibi'andiiatd) have a tolerably varied development in the Permian rocks; but nearly all the old types, except some of those which occur in the Carboniferous, have now disappeared. The principal Permian Bivalves belong to the groups of the Pearl Oysters {AvicuUdce) and the Trigomadce, represented by genera such as Bakeiuellia and Sdiizodus; the true Mussels {Mytilidce), represented by species which have been referred to Mytilus itself; and the Arks {Arcad{E), represented by species of the genera Jrca (fig. 136) and Byssoarca. The first and last of these three families have a very ancient origin; but the family of the Trigoniadce, though. 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
