. Bulletin of the British Museum (Natural History), Geology. i48 A REVIEW OF UPPER JURASSIC PLIOSAURS observation that there were forms with long necks and others with a much shorter neck (see Text-fig. i). This review is concerned solely with the latter group which were given the name of pliosaurs after the genus Pliosaurus had been created by Owen in 1841. Most of the short-necked plesiosaurians (or pliosaurs) of which the Upper Jurassic species form the central group, were described during the nineteenth century from England, France, Germany and Russia. Unfortunately there is much confusion
. Bulletin of the British Museum (Natural History), Geology. i48 A REVIEW OF UPPER JURASSIC PLIOSAURS observation that there were forms with long necks and others with a much shorter neck (see Text-fig. i). This review is concerned solely with the latter group which were given the name of pliosaurs after the genus Pliosaurus had been created by Owen in 1841. Most of the short-necked plesiosaurians (or pliosaurs) of which the Upper Jurassic species form the central group, were described during the nineteenth century from England, France, Germany and Russia. Unfortunately there is much confusion in the literature. Some species were erected on isolated humeri and femora, some on. 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 British Museum (Natural History). London : BM(NH)
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