. Elements of geology, or, The ancient changes of the earth and its inhabitants as illustrated by geological monuments. Geology. Lower jaw of largest living species of kangaroo. (Macropus major.) The reader will observe that these extinct quadrupeds Fig. 112. of Australia belong to the marsupial family, or, in other words, that they are referable to the same peculiar type of organization which now distinguishes the Australian mammalia from those of other parts of the globe. This fact is one of many pointing to a general law deducible from the fossil vertebrate and invertebrate animals of times
. Elements of geology, or, The ancient changes of the earth and its inhabitants as illustrated by geological monuments. Geology. Lower jaw of largest living species of kangaroo. (Macropus major.) The reader will observe that these extinct quadrupeds Fig. 112. of Australia belong to the marsupial family, or, in other words, that they are referable to the same peculiar type of organization which now distinguishes the Australian mammalia from those of other parts of the globe. This fact is one of many pointing to a general law deducible from the fossil vertebrate and invertebrate animals of times immediately antecedent to our own, namely, that the present geographical distribution of organic forms dates bach to a period anterior to the origin of existing species; in other words, the limitation of particular genera or families of quadrupeds, mollusca, &c, to cer- tain existing provinces of land and sea, began before the larger part of the species now contemporary with man had been introduced into the earth. Professor Owen, in his excellent " History of British Fossil Mam-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Lyell, Charles, Sir, 1797-1875. New York, D. Appleton and co.
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Keywords: ., bookcentury1800, bookdecade1860, booksubjectgeology, bookyear1868
