81006
The Hettangian saw the already existing Rhaetian ichthyosaurs and plesiosaurs continuing to flourish , while at the same time a number of new types of these marine reptiles appeared , such as " Ichthyosaurus " and " Temnodontosaurus " among the ichthyosaurs , and " Eurycleidus " , " Macroplata " , and " Rhomaleosaurus " among the plesiosaurs ( all Rhomaleosauridae , although as currently defined this group is probably paraphyletic ) .
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Text: {0} 
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