| 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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| 引用本文：季强,姬书安,程延年,尤海鲁,吕君昌,袁崇喜.2004.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[J].地球学报,25(3):275-285. |
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| 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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| 中文摘要:本文详细记述了辽宁省锦州市义县晚中生代热河生物群中两类爬行动物的蛋化石，其中离龙类蛋化石发现于早白垩世九佛堂组上部，翼龙类蛋化石发现于早白垩世义县组上部的金刚山层。经研究，离龙类蛋化石不仅含有胚胎，而且为软壳蛋。翼龙类蛋化石没有显示硬壳结构，很可能同样为软壳蛋。这些蛋化石的发现对于我们了解这两类爬行动物的生殖方式和发育演化历史将具有重要科学意义。 |
| 中文关键词:辽西 晚中生代 热河生物群 离龙类 翼龙类 蛋化石 胚胎 软壳 |
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| The First Fossil Soft-shell Eggs with Embryos from Late Mesozoic Jehol Biota of Western Liaoning, China |
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| Abstract: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. |
| keywords:Western Liaoning Late Mesozoic Jehol Biota pterosaurs choristoderes fossil eggsembryo soft shell |
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