. The Cambridge natural history. Zoology. rXEROSAURI PVTHONOMORPHA 487 cladylus, with many species from the Upper Oolite, chieily of- Germany.—The tail is very short, consisting of a few vertebrae only. The seven neck-vertebrae are so much elongated that the neck is as long as the trunk with the tail. P. longirostris measures about 1 foot in total length, while P. spectabilis is one of the smallest, only of the size of a lark. The wings, however, measure 10 inches from tip to tip. The largest is P. giganteus, with a " spread " of more than 5 feet. Sub-Order 2. Pteranodontes.—The beak


. The Cambridge natural history. Zoology. rXEROSAURI PVTHONOMORPHA 487 cladylus, with many species from the Upper Oolite, chieily of- Germany.—The tail is very short, consisting of a few vertebrae only. The seven neck-vertebrae are so much elongated that the neck is as long as the trunk with the tail. P. longirostris measures about 1 foot in total length, while P. spectabilis is one of the smallest, only of the size of a lark. The wings, however, measure 10 inches from tip to tip. The largest is P. giganteus, with a " spread " of more than 5 feet. Sub-Order 2. Pteranodontes.—The beak is long, pointed, toothless, and laterally compressed; mandibular symphysis very long. Pteranodon longiceps.—The skull has a long parieto-supra- occipital crest, which extends far back. The supratemporal foramina are abolished. The pre-orbital and orbital foramina are. Pig. 117.—Rhamphorhynchus muensteri, xf, as restored by Marsh. (From Geikie.) confluent. The scapulae are attached to several thoracic vertebrae. The skull of this gigantic species has a length of two feet and a half, and the spread of the wings measures nearly 20 feet. This, and several much smaller species, are from the Middle Cretaceous formation of Kansas. Sub-Class X.—PYTEONOMORPHA. Very long-necked and long-bodied marine Cretaceotis reptiles, with movable quadrates, single lateral temporal arches cmd pro- coelous vertebrae; with paddle-shaped, pentadactyle limbs; and with the teeth anleylosed to the jaws. The skull possesses many of the essential features of the typical lizards. The premaxillaries, frontals, and parietals are fused into unpaired bones. There is an interparietal 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 Harmer, S. F. (Sidney Frederic), Sir, 1862- ed; Shipley, A. E. (Arthur Everett), Sir, 1861-19


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Keywords: ., bookcentury1800, bookdecade1890, booksubjectzoology, bookyear1895