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 x
... containing limestones , beds of oxide of iron , and graphite - The characters , chemical composition , and minute structure of Eozoön Canadense - Compar- ison of Eozoon with existing Foraminifera - Archæosphærina- Huronian formation ...
... containing limestones , beds of oxide of iron , and graphite - The characters , chemical composition , and minute structure of Eozoön Canadense - Compar- ison of Eozoon with existing Foraminifera - Archæosphærina- Huronian formation ...
Página 3
... containing , in some form or another , the belief in the existence of periodical convulsions , and of alternating cycles of destruc- tion and repair . That geology , in its early infancy , should have become im- bued with the spirit of ...
... containing , in some form or another , the belief in the existence of periodical convulsions , and of alternating cycles of destruc- tion and repair . That geology , in its early infancy , should have become im- bued with the spirit of ...
Página 14
... " stratification , " or arrangement in successive layers ; and they do not contain fossils , except in the comparatively rare instances where volcanic ashes have enveloped animals or plants 14 PRINCIPLES OF PALEONTOLOGY . CHAPTER II.
... " stratification , " or arrangement in successive layers ; and they do not contain fossils , except in the comparatively rare instances where volcanic ashes have enveloped animals or plants 14 PRINCIPLES OF PALEONTOLOGY . CHAPTER II.
Página 15
... contain fossils ; and they are arranged in distinct layers or strata . " The so - called " aerial " rocks which , like beds of blown sand , have been formed by the action of the atmosphere , may also contain fossils ; but they are not ...
... contain fossils ; and they are arranged in distinct layers or strata . " The so - called " aerial " rocks which , like beds of blown sand , have been formed by the action of the atmosphere , may also contain fossils ; but they are not ...
Página 17
... contain the remains of animals which inhabit the river , with fragments of the plants which grew on its banks , or bones of the animals . which lived in its basin . Nor is this action confined , of course , to large rivers only , though ...
... contain the remains of animals which inhabit the river , with fragments of the plants which grew on its banks , or bones of the animals . which lived in its basin . Nor is this action confined , of course , to large rivers only , though ...
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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...