江西萍乡地区晚白垩世副蜂窝蛋类一新蛋种  

A new oospecies of parafaveoloolithids from the Pingxiang Basin, Jiangxi Province of China

作　　者：邹松林 王强[2] 汪筱林[2] 

机构地区：[1]萍乡市博物馆,江西萍乡337000 [2]中国科学院古脊椎动物与古人类研究所,中国科学院脊椎动物演化与人类起源重点实验室,北京100044

出　　处：《古脊椎动物学报》2013年第2期102-106,共5页Vertebrata Palasiatica

基　　金：国家自然科学基金(批准号:41202003, 41172018);国家杰出青年科学基金(编号:40825005);国家重点基础研究发展计划项目(编号:2012CB821900);中国科学院脊椎动物演化与人类起源重点实验室项目(编号:2011LESV004);中国科学院古脊椎动物与古人类研究所重点部署项目;中国科学院古生物化石发掘与修理专项;国家科技基础条件平台-国家岩矿化石标本资源共享平台资助

摘　　要：依据采自江西省萍乡地区上白垩统周田组的恐龙蛋化石，记述了蜂窝蛋科（Faveoloolithidae）副蜂窝蛋属（Parafaveoloolithus）一新蛋种：材料包括一枚较完整的蛋和若干破碎蛋壳。根据蛋壳弦切面呈蜂窝状结构，径切面蛋壳中、上部蛋壳局部呈现由6～10个以上壳单元成群聚集一起等特征，将其订为一新蛋种——萍乡副蜂窝蛋（Parafaveoloolithuspingxiangensisoosp．nov．）：Upper Cretaceous dinosaur egg clutches, single eggs, and countless eggshell fragments have been found in the Pingxiang Basin, Jiangxi Province since 2002. In this paper, the specimens described from the Pingxiang Basin are oblate in shape. The polar axis of this egg is 7.32 cm, the equatorial diameter is 13.81 cm, and its shape index is 189. Outer surface is smooth. Eggshell is usually composed of three or five superimposed slender shell units. In some portions, 6-10 shell units are assembled in the middle and upper part of the eggshell. Pores are straight and unbranching, extremely numerous, and closely spaced, looking as a whole like a honeycomb in tangential section through the middle part of the eggshell. Compared to the members of faveoloolithids, the specimens described here should be ascribed to the oogenus Parafaveoloolithus on the basis of some shell units tending to assemble in the middle and upper part of the eggshell. However, the difference is remarkable between the new specimen and the known oospecies, Parafaveoloolithus microporus, P. macroporus, P. tiansicunensis and P. guoqingsiensis, of which the eggshell has usually two or three shell units tending to assemble in the middle part of the eggshell. Therefore, the specimens described here represent a new oospecies, Parafaveoloolithus pingxiangensis oosp. nov.

关 键 词：江西萍乡 晚白垩世 周田组 恐龙蛋 

分 类 号：Q915.21[天文地球—古生物学与地层学]