吉林省公主岭早白垩世泉头组网形蛋（Dictyoolithus）一新种

• 基础地质·矿床·盆地 • 下一篇

吉林省公主岭早白垩世泉头组网形蛋（Dictyoolithus）一新种

王强¹,昝淑芹^2,3,金利勇²,陈军²

1.吉林大学地球科学学院,长春 130061;2.吉林大学博物馆, 长春 130026;3.中国地质博物馆,北京 100031

收稿日期:2005-09-22 修回日期:1900-01-01 出版日期:2006-03-26 发布日期:2006-03-26
通讯作者: 王强

A New Oospecies，Dictyoolithus Gongzhulingensis，from theEarly Cretaceous Quantou Formation in the Central Jilin Province

WANG Qiang¹, ZAN Shu-qin^2,3, JIN Li-yong²,CHEN Jun²

1.College of Earth Sciences, Jilin University,Changchun 130061,China;2.Museum of Jilin University,Changchun 130026,China;3.The Geological Museum of China,Beijing 100031,China

Received:2005-09-22 Revised:1900-01-01 Online:2006-03-26 Published:2006-03-26
Contact: WANG Qiang

摘要/Abstract

摘要： 报道了吉林省公主岭早白垩世泉头组发现的一窝恐龙蛋化石。蛋化石近圆形, 蛋壳厚度1.4~1.7 mm,蛋壳外表面均匀分布椭圆形或圆形大小不一的凹坑；蛋壳层由2、3个呈分树枝状的基本结构单元叠加而成，蛋壳基本单元之间气孔道阔大而不规则，靠近蛋壳外表面的基本结构单元相互连结、融合形成一层相对致密的薄层。据以上特征将其归为网形蛋科（Dictyoolithidae），网形蛋属（Dictyoolithus），定为一新种:公主岭网形蛋（Dictyoolithus gongzhulingensis oosp. nov.）。公主岭网形蛋是网形蛋类化石在中国东北地区的首次发现,同时也是早白垩世地层中网形蛋化石新的发现。

关键词: 吉林省公主岭, 早白垩世, 泉头组, 恐龙蛋

Abstract: A nest with four dinosaur eggs from the Early Cretaceous Quantou Formation in Gongzhuling area of Jilin Province is described here. The eggs are spherical in shape；the eggshell thickness varies between 1.4~1.7 mm；the outer surface of the eggshell is completely covered by circular or oval pits. Eggshell layer is composed of 2 to 3 superimposed basic structure units. There are some relatively wide pore canals between the units, which are laterally interlocked with interfusion each other to form a thin hard layer near the outer surface of the eggshell. The pore canals are irregular in shape. Based on all above mentioned characters of the egg fossils from Gongzhuling, Jilin Province the authors designate them as a new oospecies of Dictyoolithus, named as Dictyoolithus gongzhulinensis.Dictyoolithus gongzhulingensis is the first time found in the Northeast of China and also a new found in the Early Cretaceous strata.

Key words: Gongzhuling of Jilin Province, Early Cretaceous, Quantou Formation, dinosaur egg

中图分类号:

Q915.86

王强,昝淑芹,金利勇,陈军. 吉林省公主岭早白垩世泉头组网形蛋（Dictyoolithus）一新种[J]. J4, 2006, 36(02): 153-0157.

WANG Qiang, ZAN Shu-qin, JIN Li-yong,CHEN Jun. A New Oospecies，Dictyoolithus Gongzhulingensis，from theEarly Cretaceous Quantou Formation in the Central Jilin Province[J]. J4, 2006, 36(02): 153-0157.

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