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 xiii
... indicated by the Invertebrate 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 ...
... indicated by the Invertebrate 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 ...
Página 11
... indicate what was the nature of these . Thus the footprints left by birds , or reptiles , or quadrupeds upon sand or mud , are just as much proofs of the former existence of these animals as would be bones , feathers , or scales ...
... indicate what was the nature of these . Thus the footprints left by birds , or reptiles , or quadrupeds upon sand or mud , are just as much proofs of the former existence of these animals as would be bones , feathers , or scales ...
Página 45
... indicated by many of the same animals . Nothing , however , that we see at the present day would justify us in imagining an ocean of such enormous extent , and at the same time so uniform in its depth , temperature , and other ...
... indicated by many of the same animals . Nothing , however , that we see at the present day would justify us in imagining an ocean of such enormous extent , and at the same time so uniform in its depth , temperature , and other ...
Página 48
... indicating that the beds had been deposited in an area which remained continu- ously covered by the sea . On the other hand , we commonly find that there is no such regular succession when we pass from one great formation to another ...
... indicating that the beds had been deposited in an area which remained continu- ously covered by the sea . On the other hand , we commonly find that there is no such regular succession when we pass from one great formation to another ...
Página 49
... indicates , beyond b Fig . 18. - Section showing strata of Tertiary age ( a ) resting upon a worn and eroded surface ... indicated , the deposition of rock must of necessity have been proceeding more or less actively in other areas ...
... indicates , beyond b Fig . 18. - Section showing strata of Tertiary age ( a ) resting upon a worn and eroded surface ... indicated , the deposition of rock must of necessity have been proceeding more or less actively in other areas ...
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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...