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
... living beings which flourished upon the globe during past periods of its history , may be pursued by two parallel but essentially distinct paths . By the one method of inquiry , we may study the anatomical characters and structure of ...
... living beings which flourished upon the globe during past periods of its history , may be pursued by two parallel but essentially distinct paths . By the one method of inquiry , we may study the anatomical characters and structure of ...
Página vi
... living beings upon the crust of the earth , and the sequence in time of the fossiliferous formations . The second portion of the work deals exclusively with Historical Palæontology , each formation being consid- ered separately , as ...
... living beings upon the crust of the earth , and the sequence in time of the fossiliferous formations . The second portion of the work deals exclusively with Historical Palæontology , each formation being consid- ered separately , as ...
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... living beings as do not belong exclusively to the present order of things , Palæontology is , in reality , a branch of Natu- ral History , and may be regarded as substantially the Zoology and Botany of the past . It is the ancient life ...
... living beings as do not belong exclusively to the present order of things , Palæontology is , in reality , a branch of Natu- ral History , and may be regarded as substantially the Zoology and Botany of the past . It is the ancient life ...
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... living beings . We have , finally , the clearest evidence that these successive groups of animals and plants ( faunæ and flore ) are to a greater or less extent directly connected with one another . Each group is , to a greater or less ...
... living beings . We have , finally , the clearest evidence that these successive groups of animals and plants ( faunæ and flore ) are to a greater or less extent directly connected with one another . Each group is , to a greater or less ...
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... living beings which formerly dwelt upon the globe . Such remains are found , in greater or less abundance , in the great majority of rocks ; and they are not only of great interest in themselves , but they have proved of the greatest ...
... living beings which formerly dwelt upon the globe . Such remains are found , in greater or less abundance , in the great majority of rocks ; and they are not only of great interest in themselves , but they have proved of the greatest ...
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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...