| 单词 | Plesiosauria |
| 例句 | Thus those remarkable fossil reptiles, the Icthyosauria and Plesiosauria, extended, through the secondary period, probably over the greater part of the globe. The Old Riddle and the Newest Answer This, of course, is especially the case as regards the marine Ichthyosauria and Plesiosauria, of which such numbers of remains have been discovered. On the Genesis of Species An extinct order of Reptiles, called by Huxley Plesiosauria, from the typical genus Plesiosaurus. The Ancient Life History of the Earth A Comprehensive Outline of the Principles and Leading Facts of Palæontological Science But I am surprised to find the Sirenia left in one group with the Cetacea, and the Plesiosauria with the Ichthyosauria; the ordinal distinctness of these having, to my mind, been long since fully established. Critiques and Addresses But the Amphibia and Plesiosauria, though not themselves primitive vertebrate types, may be thought by some to have derived their limb-structure by direct descent from such. On the Genesis of Species Thus those remarkable fossil reptiles, the Ichthyosauria and Plesiosauria, extended, through the secondary period, probably over the greater part of the globe. On the Genesis of Species The Plesiosauria—those extinct marine reptiles of the Secondary period, with long necks, small heads, and paddle-like limbs—are of yet higher organization than are the efts and other Amphibia. On the Genesis of Species |
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