. Animals before man in North America; their lives and times. Paleontology. The Coming of Vertebrates and Rise of Fislies just described. This animal, known as Palce- ospondylus gunni, while only from an inch to an inch and a half in length, had a better-de- fined skeleton than the lampreys of to-day, and so is rather highly specialized. But it must have descended from much simpler species, and some of these may have varied in other directions, and have been the an- cestors of the strange little ar- mored "; The coast of ancient North America seems to have been poorer in fishe
. Animals before man in North America; their lives and times. Paleontology. The Coming of Vertebrates and Rise of Fislies just described. This animal, known as Palce- ospondylus gunni, while only from an inch to an inch and a half in length, had a better-de- fined skeleton than the lampreys of to-day, and so is rather highly specialized. But it must have descended from much simpler species, and some of these may have varied in other directions, and have been the an- cestors of the strange little ar- mored "; The coast of ancient North America seems to have been poorer in fishes than were the waters about early Europe, for many more of these quaint ar- mored creatures have been dis- covered in Eno-land and on the Continent than here. It may be that we have not yet discovered the burial- places of the little fellows, and that some day they will be brought to light, but at present we miss many of the forms found on the other side of the water. 97. PalcBospondylus gunni, a very ancient ances- tor of the lam- preys. (After Traquair.). 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 Lucas, Frederic A. (Frederic Augustus), 1852-1929. New York, D. Appleton and company
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectpaleont, bookyear1902
