Ichthyosauria; Ichthyosaurs (Ichthyosaurus)
Reference work entry
Ichthyosaurus was a type of reptile which returned to the sea from land. It was not dinosaur. It lived during the Triassic and Jurassic. China’s ichthyosaurus fossils are mainly located in the Upper Triassic Series in Anhui, Hubei and Sichuan Provinces and the Triassic Series in Guizhou Province and Tibet. The primitive ichthyosaurus fossils found in the rocks of the late stage of the Early Triassic in Yuan An, Hubei Province, and Chaohu, Anhui Province, are recognised as one of the world’s oldest ichthyosaurus. The abundance and ideal preservation conditions of the ichthyosaurus fossils found in Guanling National Geopark in Guizhou have made this location a top site of this kind. China’s most famous ichthyosaurus fossil is the 160-million-year-old ‘Himalayasaurus’, which was found in the 1970s at an elevation of 4,800 m on the southern slope of the Himalayas. This fossil is more than 10 m long and contains more than 600 teeth (Fig. 10).
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