Class-book of GeologyMacmillan and Company, 1890 - 516 páginas |
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Página 293
... Permian system , now increase in number and variety . During the Mesozoic ages they continued to be the most characteristic members of the terrestrial flora , insomuch that this division of geological time is sometimes spoken of as the ...
... Permian system , now increase in number and variety . During the Mesozoic ages they continued to be the most characteristic members of the terrestrial flora , insomuch that this division of geological time is sometimes spoken of as the ...
Página 378
... ( Permian ) and Chondrosteus ( Lias ) ; ( 5 ) Polypteroideans , represented by the modern Polypterus of the Nile , and by many extinct genera , as the Paleozoic Diplopterus , Megalichthys , Osteolepis ( Fig . 133 ) , " Calacanthus ...
... ( Permian ) and Chondrosteus ( Lias ) ; ( 5 ) Polypteroideans , represented by the modern Polypterus of the Nile , and by many extinct genera , as the Paleozoic Diplopterus , Megalichthys , Osteolepis ( Fig . 133 ) , " Calacanthus ...
Página 379
... Permian rocks , but it is only in Tertiary strata that undoubted remains of Urodela have been found . ii . Anura , or tailless amphibians — animals with relatively short and broad bodies and two pairs of limbs , of which the hinder are ...
... Permian rocks , but it is only in Tertiary strata that undoubted remains of Urodela have been found . ii . Anura , or tailless amphibians — animals with relatively short and broad bodies and two pairs of limbs , of which the hinder are ...
Página 380
... Permian system ( Protorosaurus ) ; in the Triassic period lived the Rhyncosaurus , Hyperodapedon , and Telerpeton ( Fig . 168 ) ; in the Cretaceous , the long - necked Dolichosaurus and the gigantic Mosasaurus . iv . Crocodilia - the ...
... Permian system ( Protorosaurus ) ; in the Triassic period lived the Rhyncosaurus , Hyperodapedon , and Telerpeton ( Fig . 168 ) ; in the Cretaceous , the long - necked Dolichosaurus and the gigantic Mosasaurus . iv . Crocodilia - the ...
Página 390
... ( Permian ) , 285 , 289 Dykes , 108 , 109 , 163 , 202 , 204 * , 206 , 207 * , 208 * EAGLE , fossil , 336 Earth , study of the history of the , 5 , 7 , 8 , 10 ; condition of interior of , 93 , 94 ; internal heat of , 94 ; secular loss of ...
... ( Permian ) , 285 , 289 Dykes , 108 , 109 , 163 , 202 , 204 * , 206 , 207 * , 208 * EAGLE , fossil , 336 Earth , study of the history of the , 5 , 7 , 8 , 10 ; condition of interior of , 93 , 94 ; internal heat of , 94 ; secular loss of ...
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Términos y frases comunes
abundant accumulated acid Ammonites ancient Assistant Master beds BOOK bottom Brachiopods calcareous calcite Cambrian Cambridge carbonate of lime Carboniferous Chapter chiefly clay College containing corals Cretaceous crinoids crystalline crystals decay deposits detritus Devonian earth earth's crust Edited ELEMENTARY Eocene eruptive Europe evidence example extinct fauna Fcap feet fissures fossils genera GEOGRAPHY geological history glacier globe gradually granite gravel GREEK ground Illustrated Jurassic kinds known lakes land lava layers limestone living lower marine marls mass materials Mesozoic mineral Miocene mountains natural occur Old Red Sandstone organic remains original Palæozoic Paleozoic period Permian plants and animals Pliocene present preserved Prof Professor quartz Red Sandstone regions revised rivers rocks sand schists sediment sedimentary sedimentary rocks shales sheets shells siliceous Silurian soil solid sometimes species stone strata structure substance surface terrestrial Tertiary thick trace Triassic upper various vegetation volcanic
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