. Elements of geology, or, The ancient changes of the earth and its inhabitants as illustrated by geological monuments. Geology. ch. ;! NEW RED SANDSTONE. 431 CHAPTER XXII TRIAS OR NEW RED SANDST02ntE GROUP. Distinction between New and Old Red Sandstone—Between Upper and Lower New Red—The Trias and its three divisions—Most largely developed in Germany— Recognition of a Marine equivalent of the Upper Trias in the Austrian Alps— True position of the St. Cassian and Hallstadt Beds—800 new species of triassic Mollusea and Radiata—Links thus supplied for connecting the Palaeozoic and Neoz
. Elements of geology, or, The ancient changes of the earth and its inhabitants as illustrated by geological monuments. Geology. ch. ;! NEW RED SANDSTONE. 431 CHAPTER XXII TRIAS OR NEW RED SANDST02ntE GROUP. Distinction between New and Old Red Sandstone—Between Upper and Lower New Red—The Trias and its three divisions—Most largely developed in Germany— Recognition of a Marine equivalent of the Upper Trias in the Austrian Alps— True position of the St. Cassian and Hallstadt Beds—800 new species of triassic Mollusea and Radiata—Links thus supplied for connecting the Palaeozoic and Neozoic faunas—Keuper and its fossils—Muschelkalk and fossils—Fossil plants of the Bunter—Triassic group in England—Bone-bed of Axmouth and Aust— Red Sandstone of Warwickshire and Cheshire—Footsteps of Cheirotherium in England and Germany—Osteology of '^ Labyrinthodon—Whether this Batra- chian was identical with Cheirotherium—Dolomitic Conglomerate of Bristol— Origin of Red Sandstone and Rock-salt—Hypothesis of saline volcanic exhala- tions—Theory of the precipitation of salt from inland lakes or lagoons—Saltness of the Red Sea—Triassic coal-field of Eastern Virginia, near Richmond—New Red Sandstone in the United States—Fossil footprints of birds and reptiles in the valley of the Connecticut—Antiquity of the Red Sandstone containing them— Triassic raamrmfer of North Carolina. Between the Lias and the Coal (or Carboniferous group) there is interposed, in the midland and western counties of England, a great series of red loams, shales, and sandstones, to which the name of the " New Red Sandstone formation" was first given, to distinguish it from other shales and sandstones called the " Old Red " (c, fig. 462), often identical in mineral character, which lie immediately beneath the coal (5). Fig. c. Old Eed Sandstone. &. Coal. a. New Eed Sandstone. The name of " Red Marl" has been incorrectly a
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Keywords: ., bookcentury1800, bookdecade1860, booksubjectgeology, bookyear1868
