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These samples attested the virtue of the tree. These were a clear amelioration of trilobite and saurus, and a good basis for further proceeding. With this artist time and space are cheap, and she is insensible of what you say of tedious preparation. She waited tranquilly the flowing periods of paleontology, for the hour to be struck when man should arrive.
The eye of the Trilobite tells us that the sun shone on the old beach where he lived; for there is nothing in Nature without a purpose, and when so complicated an organ was made to receive the light, there must have been light to enter it.
"Oh, Daisy, Daisy! Hadn't you better learn about what is on the outside of the earth, before we dig down so deep into it?" "Well, Preston, my trilobite was on the outside." "Daisy, it wouldn't interest you," said Preston, seriously; "you would have to go deep into something else besides the earth so deep that you would get tired.
There were no trees, to speak of; and no grass or anything but sea-weed and mosses; and no living things but fishes and oysters and such creatures?" "Where were the beasts then, and the birds?" "They were not made yet. That's the reason, I suppose, there was no grass for them to eat." Daisy looked down at the trilobite; and looked profoundly thoughtful.
Many such creatures, rolled up just as the wood-louse curls itself, in tight balls, have been found in a fossil state; and there is a little petrified crustacean with wonderful eyes, which has been found in the slate quarries of South Wales. It is called the Trilobite, because it is composed of three lobes or divisions, and is an animal of the same kind as the lobster.
Slender as our knowledge is of the earlier evolution of the Invertebrate animals, we return to our Cambrian population with greater interest. The uncouth Trilobite and its livelier cousins, the sluggish, skulking Brachiopod and Mollusc, the squirming Annelids, and the plant-like Cystids, Corals, and Sponges are the outcome of millions of years of struggle.
"Do you care a great deal for your epaulettes?" said Daisy. The Captain laughed, with the water standing in his eyes. Yes, absolutely, his bright sparkling eyes had drops in them. "Daisy, I have brought you our land fish that we had such trouble for." "The trilobite! Oh, did you?" exclaimed Daisy, as he placed it before her.
Gradually the antique types of the Paleozoic fauna died out, and in the Permian rocks are found the last survivors of the cystoid, the trilobite, and the eurypterid, and of many long-lived families of brachiopods, mollusks, and other invertebrates. The venerable Orthoceras and the Goniatite linger on through the epoch and into the first period of the succeeding era.
Great good luck came to us when the first pair of eyes were invented, probably by the trilobite back in Silurian times; when the first ear appeared, probably in Carboniferous times; when the first pair of lungs grew out of a fish's air-bladder, probably in Triassic times; when the first four-chambered heart was developed and double circulation established, probably with the first warm-blooded animal in Mesozoic times.
"Ah! how did he?" said the Captain, looking contentedly at the trilobite. "That's more than I can tell you, Daisy. Only he lived before the rock was made, and when it was made, it wrapped him up in it, somehow; and now we have got him!" "But, Capt. Drummond I " "What is it?" "When do you suppose this rock was made?" "Can't just say, Daisy. Some rocks are young, and some are old, you know.
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