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Updated: June 2, 2025
Does not any such supposition become in the highest degree improbable, when, in the terrestrial or fresh-water Labyrinthodonts, which lived on the land of the Carboniferous epoch, as well as on that of the Trias, we have evidence that one form of terrestrial life persisted, throughout all these ages, with no important modification?
The Silurian system, the Devonian system, the Carboniferous system, etc., are set down in our books as groups of formations which everywhere succeed each other in a given order; and are severally everywhere of the same age. Though it may not be asserted that these successive systems are universal; yet it seems to be tacitly assumed that they are.
One sort need scarcely be mentioned, in which all along its length are strong bent hooks, placed in a way that will hold one if it can but grapple with him, for that is very common and not like those mentioned, which the rather seem to be stragglers from the carboniferous period of geologists, when Pachydermata wriggled unscathed among tangled masses worse than these.
It must of seemed longer to Oswald than it takes for a chinch bug to become a carboniferous Jurassic. She was committing sabotage on him in the cruellest way. Then, after watching his death agony with cold eyes and pretending to wonder like a rattled angel, she brightens up and says: "Oh, goody! Now I remember everything. I placed them right here."
The table-land in that region, composed of Carboniferous and Devonian rocks, is about 450 feet high, and is not overspread with loess. A terrace of gravel covered with loess has been mentioned as existing on the right bank of the Meuse at Maestricht.
It has been suggested that uniformity of climate and temperature continued up till the carboniferous ages, at any rate; and it is only in the later ages that such differences of fauna in different parts of the world appear, as to show differences of climate more like what we have at present. Whether this is so or not, I am not concerned to argue.
In order to account for ancient life, that passed away, as far back as the carboniferous age, it is claimed that millions of years passed before that age began. But here are the very first species of mollusca in the more recent clays unchanged, and here are the same little animals that floored so much territory in the bygone with chalk.
The two separate walls, one above the other, on the top of the Canyon, as seen in the arms of the amphitheatre at El Tovar, are the other two wide members of this Carboniferous period. The lower is the cross-bedded sandstone, and the upper the cherty limestone.
The dyeing industry has been radically changed during the last half century by the introduction of what are known as the artificial dyes, whilst the natural colouring matters which had previously been the sole basis of the industry, and which had been obtained by very simple chemical methods from some of the constituents of the animal kingdom, or which were found in a natural state in the vegetable kingdom, have very largely given place to those which have been obtained from coal-tar, a product of the mineralised vegetation of the carboniferous age.
The next step, or platform, the Cretaceous, slopes down gradually or dies out on the step beneath it; then comes the Jurassic, which ends in white sandstone cliffs several hundred feet high; then the Triassic, which ends in the famous vermilion cliffs thousands of feet high, most striking in color and in form; then the Permian tread, which also ends in striking cliffs, with their own style of color and architecture; and, lastly, the great Carboniferous platform in which the canon itself is carved.
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