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 14
... resembles what would take place if we were to pull down a house built of brick by successive bricks , replacing each brick as removed by a piece of stone of precisely the same size and form . The result of this would be that the house ...
... resembles what would take place if we were to pull down a house built of brick by successive bricks , replacing each brick as removed by a piece of stone of precisely the same size and form . The result of this would be that the house ...
Página 53
... resembling the marine animals now inhabiting shallow waters , if they are accompanied by the detached relics of terrestrial organisms , or if they are partially rolled and broken , we may conclude that the fossil- iferous deposit was ...
... resembling the marine animals now inhabiting shallow waters , if they are accompanied by the detached relics of terrestrial organisms , or if they are partially rolled and broken , we may conclude that the fossil- iferous deposit was ...
Página 56
... resembling that of the warmer parts of the United States , and leading to the conclusion that the mean annual temperature must have been at least 30 ° hotter than it is at present . It has been shown that , at the same time , Greenland ...
... resembling that of the warmer parts of the United States , and leading to the conclusion that the mean annual temperature must have been at least 30 ° hotter than it is at present . It has been shown that , at the same time , Greenland ...
Página 83
... resembling our living water - fleas ( Ostracoda ) . A few are larger forms , and belong to the same group as the existing brine - shrimps and fairy - shrimps ( Phyllopoda ) . One of the most characteristic of these is the Hymenocaris ...
... resembling our living water - fleas ( Ostracoda ) . A few are larger forms , and belong to the same group as the existing brine - shrimps and fairy - shrimps ( Phyllopoda ) . One of the most characteristic of these is the Hymenocaris ...
Página 84
... resemble the eyes of insects and many existing Crustaceans in being " compound , " or made up of numerous simple eyes aggregated together . So excellent is the state of preservation of many specimens of Trilobites , that the numerous ...
... resemble the eyes of insects and many existing Crustaceans in being " compound , " or made up of numerous simple eyes aggregated together . So excellent is the state of preservation of many specimens of Trilobites , that the numerous ...
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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...