On the Origin of Species by Means of Natural Selection, Or, The Preservation of Favoured Races in the Struggle for LifeAppleton, 1898 |
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Página 61
... fauna , tertiary beds are so poorly developed , that no record of several successive and peculiar marine faunas will probably be preserved to a distant age . A little reflection will explain why , along the rising coast of the western ...
... fauna , tertiary beds are so poorly developed , that no record of several successive and peculiar marine faunas will probably be preserved to a distant age . A little reflection will explain why , along the rising coast of the western ...
Página 85
... fauna ( of Barrande ) may by some " be considered as a comparatively modern event . " The Eozoon belongs to the most lowly organised of all classes of animals , but is highly organised for its class ; it existed in countless numbers ...
... fauna ( of Barrande ) may by some " be considered as a comparatively modern event . " The Eozoon belongs to the most lowly organised of all classes of animals , but is highly organised for its class ; it existed in countless numbers ...
Página 90
... fauna to reappear ; but Lyell's explanation , namely , that it is a case of temporary migration from a distinct geographical province , seems satisfactory . These several facts accord well with our theory , which includes no fixed law ...
... fauna to reappear ; but Lyell's explanation , namely , that it is a case of temporary migration from a distinct geographical province , seems satisfactory . These several facts accord well with our theory , which includes no fixed law ...
Página 106
... faunas . Lyell has made similar observations on some of the later tertiary formations . Barrande , also , shows that there is a striking general parallelism in the successive Silurian deposits of Bohemia and Scandinavia ; never- theless ...
... faunas . Lyell has made similar observations on some of the later tertiary formations . Barrande , also , shows that there is a striking general parallelism in the successive Silurian deposits of Bohemia and Scandinavia ; never- theless ...
Página 112
... fauna during any one great period in the earth's history will be intermediate in general character between that which preceded and that which succeeded it . Thus the spe- cies which lived at the sixth great stage of descent 112 ...
... fauna during any one great period in the earth's history will be intermediate in general character between that which preceded and that which succeeded it . Thus the spe- cies which lived at the sixth great stage of descent 112 ...
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Términos y frases comunes
admit affinity allied species ancient animals appear Archipelago arctic areas become believe birds Cambrian changes characters cies classification climate closely allied common progenitor continent crustaceans degree deposited difficulty distant distinct species domestic doubt embryo eral Europe existing extinct fact faunas fertilised fertility flowers formations formerly forms fossil fresh-water Fritz Müller Gärtner genera genus geological period geological record Glacial period groups of species habits hybrids hybrids produced important individuals inhabitants inherited insects instance intermediate intervals land larvæ less living mammals manner marine Marsupials migration modified descendants mongrels mountains natural selection naturalists nearly occur oceanic islands offspring organisation parent parent-form peculiar perfect pistil plants pollen present probably produced quadrupeds reciprocal crosses regions remains remarked reproductive resemblance rocks rudimentary organs sediment seeds Silurian South America stage stamens sterility structure successive suppose terrestrial tertiary theory tion variations varieties whilst widely different wings