The Ancient Life-history of the Earth: A Comprehensive Outline of the Principles and Leading Facts of Palæontological ScienceD. Appleton & Company, 1878 - 407 páginas |
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Página v
... animals are regarded prin- cipally as so many landmarks in the ancient records of the world , and are studied historically and as regards their relations to the chronological succession of the strata in which they are entombed . In so ...
... animals are regarded prin- cipally as so many landmarks in the ancient records of the world , and are studied historically and as regards their relations to the chronological succession of the strata in which they are entombed . In so ...
Página x
... animals and plants - Reference of fossil forms to the existing primary divisions of the animal kingdom - Depart- ure of the older types of life from those now in existence - Re- semblance of the fossils of a given formation to those of ...
... animals and plants - Reference of fossil forms to the existing primary divisions of the animal kingdom - Depart- ure of the older types of life from those now in existence - Re- semblance of the fossils of a given formation to those of ...
Página xiii
... animals - The Pliocene Mammalia -Literature relating to the Tertiary deposits and their fossils , 323-333 CHAPTER XXI . The Post - Pliocene period - Division of the Quaternary deposits into Post - Pliocene and Recent - Relations of the ...
... animals - The Pliocene Mammalia -Literature relating to the Tertiary deposits and their fossils , 323-333 CHAPTER XXI . The Post - Pliocene period - Division of the Quaternary deposits into Post - Pliocene and Recent - Relations of the ...
Página 4
... animals and plants flourished uninterruptedly in suc- cessive generations . Each period of tranquillity , however , was believed to have been , sooner or later , put an end to by a sudden and awful convulsion of nature , ushering in a ...
... animals and plants flourished uninterruptedly in suc- cessive generations . Each period of tranquillity , however , was believed to have been , sooner or later , put an end to by a sudden and awful convulsion of nature , ushering in a ...
Página 6
... animals and plants have always been identical with those now familiar to us . Nothing could be more natural than such a belief , and nothing could be further removed from the actual truth . On the contrary , a very slight acquaintance ...
... animals and plants have always been identical with those now familiar to us . Nothing could be more natural than such a belief , and nothing could be further removed from the actual truth . On the contrary , a very slight acquaintance ...
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Términos y frases comunes
abundant allied Amongst ancient animals attain beds belong Birds Bivalves bones bony Brachiopods Britain calcareous Cambrian carbonate Carboniferous Chalk characteristic clays coal Coal-measures composed consists contain Corals Cretaceous Crinoids Crustaceans Cycads deposits Devonian Elephants Eocene Europe existing species extinct genus feet fishes Foraminifera formation forms fossils Ganoids genera genus Geol geological gigantic Glacial Graptolites Greensand horny Journ Jurassic known Lastly Laurentian less Lias lime limestones living Lower Silurian Mammals marine Mesozoic Miocene Mollusca natural North America numerous occur Old Red Sandstone Oolitic organic origin Owen Palæontographical Society Paleozoic period Permian plants plates Pliocene portion possessed Post-Pliocene present day principal Pterosaurs Quadrupeds regarded represented Reptiles resembling Rhinoceros rocks sands shales shell singular siphuncle skeleton skull Slates strata structure surface tail teeth Tertiary thickness tion tooth Trias Triassic Trilobites types Univalves Upper Miocene Upper Silurian vertebræ whilst yielded the remains
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Página 244 - Ichthyosaurus to cut through the waves. May it not therefore be concluded (since, in addition to these circumstances, its respiration must have required frequent access of air), that it swam upon or near the surface, arching back its long neck like a swan, and occasionally darting it down at the fish which happened to float within its reach.
Página 366 - Description of the skeleton of an extinct gigantic sloth, Mylodon robustus, Owen, with observations on the osteology, natural affinities, and probable habits of the megatherioid quadrupeds in general, London, 4to., 176 pp., 24 pis., 1842.
Página 363 - Eagles, owls, and gulls pursue their prey along the sea-coast; ptarmigan run in troops amongst the bushes; little snipes are busy along the brooks, and in the morasses; the social crows seek the neighbourhood of men's habitations ; and, when the sun shines in spring, one may even sometimes hear the cheerful note of the finch, and in autumn, that of the thrush...
Página 291 - ... formation occupies a middle place in the Eocene series, we are struck with the comparatively modern date to which some of the greatest revolutions in the physical geography of Europe, Asia, and northern Africa must be referred. All the mountain chains, such as the Alps, Pyrenees, Carpathians, and Himalayas, into the composition of whose central and loftiest parts the nummulitic strata enter bodily, could have had no existence till after the middle Eocene period."— Manual, p. 232. A still more...