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abundant allied Amongst ancient animals appear attain beds belong Birds body bones Britain calcareous Carboniferous Chalk character characteristic clays closely coal composed consists contain Corals Cretaceous deposits developed Devonian Eocene Europe examples existing extinct fact feet fishes formation forms fossils genera genus geological hand important indicate interest Jurassic known latter length less Lignitic Limestone living Lower Lower Silurian Mammals marine Middle Miocene natural nearly North America numerous occur Oolitic organic origin period Permian plants plates Pliocene portion possessed Post-Pliocene present principal probably recent referable regarded regions remains represented Reptiles resembling river rocks sands sandstones shell showing side Silurian similar singular skeleton sometimes species strata structure surface tail teeth Tertiary thickness tion Trias Triassic true types Upper Upper Silurian various whilst whole yielded
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 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...