. The story of the amphibians and the reptiles. Amphibians; Reptiles. REPTILES IN GEOLOGY 149 The third one of these paddle- limbed orders had bodies that were snakelike with extremely long tails. The type-form is the Mosasa/wus, found fossil in. the Old World; but America also is rich in them. Pro- fessor Cope has called them Python- omorpha. One of them—the Edesto- sawrus—is here shown (Fig. 68)\ It will be noted that their limbs, while paddlelike, had the digits more like those of land-haunters. It can be seen by the lengthened spines on the tail vertebrae that the tail had a crest and was
. The story of the amphibians and the reptiles. Amphibians; Reptiles. REPTILES IN GEOLOGY 149 The third one of these paddle- limbed orders had bodies that were snakelike with extremely long tails. The type-form is the Mosasa/wus, found fossil in. the Old World; but America also is rich in them. Pro- fessor Cope has called them Python- omorpha. One of them—the Edesto- sawrus—is here shown (Fig. 68)\ It will be noted that their limbs, while paddlelike, had the digits more like those of land-haunters. It can be seen by the lengthened spines on the tail vertebrae that the tail had a crest and was a swimming organ. They are much like serpents in some of their parts; ' It was in these that the jaws were doubly hinged for swallowing. Many had more ribs than the one here figured, and there was no breast-bone meeting of ribs below. The next division is the great land- haunting group known collectively as Dinosav/rs. It is supposed (and prob- able) that the crocodilians lay between the loMhyosawrua and these. Here Nature seemed to have tried all things and hoped all things—^holding fast to nothing. We can note only a few typical forms. While some were four-footed in. 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 Baskett, James Newton, 1849-; Ditmars, Raymond Lee, 1876-1942. joint author. New York, D. Appleton and Company
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectreptile, bookyear1902
