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Updated: May 24, 2025
If there were any harmony between the Miltonic account and the circumstantial evidence, we ought to have abundant evidence of the existence of birds in the Carboniferous, the Devonian, and the Silurian rocks. I need hardly say that this is not the case, and that not a trace of birds makes its appearance until the Tar later period which I have mentioned.
One in Ohio raised the elevated ground on which Cincinnati now stands; another hill lifted its granite crest in Missouri, raising with it an extensive tract of Silurian and Devonian deposits; while a smaller one, which does not seem, however, to have disturbed the beds about it so powerfully, broke through in Arkansas.
Thus the Devonian Ganoids, though almost all members of the same sub-order as Polypterus, and presenting numerous important resemblances to the existing genus, which possesses biconclave vertebrae, are, for the most part, wholly devoid of ossified vertebral centra.
Clumps of huge ferns were scattered about, and the ground was covered with curious tracks. "Jupiter is evidently passing through a Carboniferous or Devonian period such as existed on earth, though, if consistent with its size, it should be on a vastly larger scale," said the doctor.
The vertebrae were not ossified, for no trace of them has been found. DEVONIAN FISHES. The TRUE FISHES of the Devonian can best be understood by reference to their descendants now living. Modern fishes are divided into several groups: SHARKS and their allies; DIPNOANS; GANOIDS, such as the sturgeon and gar; and TELEOSTS, most common fishes, such as the perch and cod.
There must have been nothing but marine plants, and these must have been on the general line of the seaweeds. Little can be definitely said concerning them. The next period of the Palæozoic is known as the Devonian age, or the age of fishes. Now the backboned animals first make their clear and unmistakable appearance.
In an agony of terror, in an access of despair, when all else fails, he strikes a bee-line for the hills he loves; rationally or irrationally, he seems to think he can hide there. Hugo Le Geyt, with his frank boyish nature, his great Devonian frame, is sure to have done so. I know his mood. He has made for the West Country!" "You are, right, Hilda," Mrs. Mallet exclaimed, with conviction.
His next engagement was scarcely better starred; for the ship proved so leaky, and frightened them all so heartily during a short passage through the Irish Sea, that the entire crew deserted and remained behind upon the quays of Belfast. Evil days were now coming thick on the Devonian. He could find no berth in Belfast, and had to work a passage to Glasgow on a steamer.
The great oyster family dates from here. Cephalopods are now to have their day. The archaic Orthoceras lingers on into the Triassic and becomes extinct, but a remarkable development is now at hand for the more highly organized descendants of this ancient line. We have noticed that in the Devonian the sutures of some of the chambered shells become angled, evolving the Goniatite type.
When the rocks that form my native Catskills were being laid down in the Devonian waters, I fancy that my aquatic embryo was swimming about somewhere and slowly waxing strong. Up and up I climbed across the sandstone steps, across the limestone, the conglomerate, the slate, up into Carboniferous times.
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