贵州发现珍稀古生物化石——鱼龙类卵胎生的新例证

Discovery of Rare Ancient Living Fossils in Guizhou province:the New Evidense of Ovoiviparity of Ichthyosaurids

鱼龙类为适应在水中生活而四肢特化,不能登陆产卵,生殖方式改为卵胎生。通过对一些鱼龙类化石的观察和研究,在我国首次发现了其母体內?嬗惺呱形捶⒂耆男∮滋宓挠懔瓯?这些化石的发现,为鱼龙类的生殖方式是卵胎生提供了新例证。

The ichthyosaurs, a major group of maine reptile of Mesozic ear, it form like the shark or dolphin. Recently, we discovered four gravid specimens of Qianichthyosaurus and Shastsaurids from the Last Triassic of Guarding, Guizhou of China. These exquisitely preserved ichtyosaur specimens provide the unequivocal new evidence of vovoviparaity of reproductive mode.