| 辽西晚中生代热河生物群中首次发现具胚胎的软壳蛋化石 |
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| 关键词:Western Liaoning Late Mesozoic Jehol Biota pterosaurs choristoderes fossil eggsembryo soft shell |
| 基金项目:部专项基金项目“辽西中生代热河生物群及相关地层研究”(编号:2000104) |
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| The First Fossil Soft-shell Eggs with Embryos from Late Mesozoic Jehol Biota of Western Liaoning, China |
| Two kinds of fossil reptilian eggs are reported in this paper.Both of them are from the Late Mesozoic beds in Yixian County of Jinzhou City, Western Liaoning, China, which is famous of producing Jehol Biota. One of them (choristoderan eggs) was u-nearthed from the upper portion of the Jiufotang Formation, and the other (a pterosaurian egg) was collected from the Jingangshan Bed of the upper part of the Yixian Formation. The choristoderan eggs not only contain embryos, but also are soft-shelled. The pterosaurian egg doesn′t show any structures of the hard shell,indicating that it may be soft-shelled too. The discovery of these fossil eggs sheds new light on our understanding of the reproductive and developmental diversity of reptilians. |
| JI Qiang,JI Shu-an,CHENG Yan-nian,YOU Hai-lu,LV Jun-chang,YUAN Chong-xi.2004.The First Fossil Soft-shell Eggs with Embryos from Late Mesozoic Jehol Biota of Western Liaoning, China[J].Acta Geoscientica Sinica,25(3):275-285. |
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