The Ancient Life-history of the Earth: A Comprehensive Outline of the Principles and Leading Facts of Palæontological ScienceD. Appleton & Company, 1878 - 407 páginas |
Dentro del libro
Resultados 1-5 de 42
Página 10
... length in geology and zoology without much paleontolo- gical knowledge , it is hardly possible to attain to a satisfac- tory general acquaintance with either of these subjects with- out having mastered the leading facts of the first ...
... length in geology and zoology without much paleontolo- gical knowledge , it is hardly possible to attain to a satisfac- tory general acquaintance with either of these subjects with- out having mastered the leading facts of the first ...
Página 36
... length , of coal , and it is sufficient to say here that all the true coals , anthracites , and lignites , are of organic origin , and consist principally of the remains of plants in a more or less altered condition . The bituminous ...
... length , of coal , and it is sufficient to say here that all the true coals , anthracites , and lignites , are of organic origin , and consist principally of the remains of plants in a more or less altered condition . The bituminous ...
Página 46
... length of time , the European area may undergo elevation , or may become otherwise unsuitable for the perpetuation of its fauna ; the result of which would be that some or all of the marine animals of the area would migrate to some more ...
... length of time , the European area may undergo elevation , or may become otherwise unsuitable for the perpetuation of its fauna ; the result of which would be that some or all of the marine animals of the area would migrate to some more ...
Página 48
... length , many of which we can never expect to fill up . Nor are the proofs of this far to seek . Apart from the facts that we have hitherto examined only a limited portion of the dry land , that nearly two - thirds of the entire area of ...
... length , many of which we can never expect to fill up . Nor are the proofs of this far to seek . Apart from the facts that we have hitherto examined only a limited portion of the dry land , that nearly two - thirds of the entire area of ...
Página 74
... the most important organic body hitherto found in the Lauren- tian , and has been here treated at proportionate length , other traces of life have been detected , which may subsequently 74 PRINCIPLES OF PALEONTOLOGY .
... the most important organic body hitherto found in the Lauren- tian , and has been here treated at proportionate length , other traces of life have been detected , which may subsequently 74 PRINCIPLES OF PALEONTOLOGY .
Otras ediciones - Ver todas
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
Pasajes populares
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...