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Updated: May 17, 2025
For another two hours I limped forward with pain and grief by now I was leaning on Hans' shoulder up an endless, uncultivated rise clothed with euphorbias and fern-like cycads. At length we reached its top and found ourselves within a rifle shot of a fenced native village. I suppose that its inhabitants had been warned of our coming by runners from the huts I have mentioned.
They have been divided into three distinct groups by Forbes, each characterised by the same genera of pulmoniferous mollusca and cyprides, these genera being represented in each group by different species; they have yielded insects of many orders, and the fruits of several plants; and lastly, they contain "dirt-beds," or old terrestrial surfaces and vegetable soils at different levels, in some of which erect trunks and stumps of cycads and conifers, with their roots still attached to them, are preserved.
Phanerogamic plants in their lowest groups of gymnosperm exogens then begin to appear in the Devonian conifers, gradually followed by cycads. And it is not till Cainozoic times that we have the endogenous grasses and palms and angiospermous exogens.
Sequoias of many varieties ranged far into northern Canada. In northern Greenland there were luxuriant forests of magnolias, figs, and cycads; and a similar flora has been disinterred from the Cretaceous rocks of Alaska and Spitzbergen. Evidently the lands within the Arctic Circle enjoyed a warm and genial climate, as they had done during the Paleozoic.
Of 700 specimens in one early Cretaceous deposit only 96 are Angiosperms; of 460 species in a later deposit about 400 are Angiosperms. They oust the cycads in Europe and America, as the cycads and conifers had ousted the Cryptogams. The change in the face of the earth would be remarkable.
Greenland and Spitzbergen are fragments of a continent that then bore a luxuriant growth of ferns and cycads, and housed large reptiles that could not now live thousands of miles south of it.
All the glories of Southern India, Ceylon, Java, Australasia, Brazil, and the West Indies may now be seen there, in palms, cycads, eucalypti, acacias, tree ferns, clinging vines, and splendid flowers, as well as in the many-colored birds and insects of those regions; with their animals, also, which are disposed, when needful for safety, in cages so large and yet so light, as scarcely to give the appearance of imprisonment.
Orchid& display sprays of yellowish-green flowers, which contribute a decided savour to the medley of scents, and palm-like Cycads meander from the low bank out Into the forest. But there is one tree which, if not superior to the rest in broadness of base, height, fairness of bark, and fullness of bloom, has especial endowment.
To the fig and sassafras are now added the birch, beech, oak, poplar, walnut, willow, ivy, mulberry, holly, laurel, myrtle, maple, oleander, magnolia, plane, bread-fruit, and sweet-gum. Most of the American trees of to-day are known. The ginkgoes struggle on for a time. The cycads dwindle enormously.
Although the Mesozoic era is shorter than the Paleozoic, as measured by the thickness of their strata, yet its duration must be reckoned in millions of years. Its predominant life features are the culmination and the beginning of the decline of reptiles, amphibians, cephalopod mollusks, and cycads, and the advent of marsupial mammals, birds, teleost fishes, and angiospermous plants.
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