A New Oospecies,Dictyoolithus Gongzhulingensis,from the Early Cretaceous Quantou Formation in the Central Jilin Province
A New Oospecies,Dictyoolithus Gongzhulingensis,from the Early Cretaceous Quantou Formation in the Central Jilin Province
复制标题
DOI：
--
复制
发表时间：
2006
期刊：
影响因子：
--
通讯作者：
W. Qiang;Jin Li-yong
中科院分区：
文献类型：
--
作者：
W. Qiang;Jin Li-yong
介绍了吉林省公主岭地区早白垩世泉头组4枚恐龙蛋的巢穴。蛋呈球形，蛋壳厚度1.4～1.7毫米，蛋壳外表面完全被圆形或椭圆形凹坑所覆盖。蛋壳层由2～3个基本结构单元叠置而成，单元之间有一些较宽的孔道，横向互锁。蛋壳外表面附近相互形成一层薄硬层，孔道形状不规则。根据吉林公主岭蛋化石的上述特征，作者将其确定为网状石属的一个新种，命名为公主岭网状石。公主岭网状石是我国东北地区首次发现，也是早期的新发现。白垩纪地层。
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.