The first Similifaveoloolithidae (Wormoolithus luxiensis oogen. et oosp. nov.) from the Upper Cretaceous of Jiangxi Province, China
The first Similifaveoloolithidae (Wormoolithus luxiensis oogen. et oosp. nov.) from the Upper Cretaceous of Jiangxi Province, China
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中国江西省上白垩统第一个 Similifaveololithidae (Wormoolithus luxiensis oogen. et oosp. nov.)
DOI：
10.1080/08912963.2019.1658093
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发表时间：
--
影响因子：
1.4
通讯作者：
Wang Xuri
中科院分区：
文献类型：
--
作者：
Zhu Xufeng;Fang Kaiyong;Wang Qiang;Deng Li;Liu Yuchun;Wen Jun;Wang Xiaolin;Wang Xuri
摘要本文描述了江西上白垩统周田组中的一个新成员--Similifaveolololithidae。新卵分类群--卢西虫卵。等。十一月，是基于从部分窝卵中收集的卵而建立的，代表Similifaveolololithidae的第二卵属。虫壳虫属的卵壳单元具有不规则的分枝，卵壳内部有不规则的孔洞，在切线方向上呈蠕虫状，卵壳外部有倾斜的孔道，在切线方向上呈蜂窝状。它与后者的区别是极轴和赤道直径较长，无致密层。虽然窝卵不完整，但保存下来的部分表明蛋在巢中紧密堆叠。此外，粘土矿物发生在孔隙和高估计的水蒸气传导性表明一个潮湿的埋葬巢微环境。
ABSTRACT This study describes a new member of Similifaveoloolithidae from the Upper Cretaceous Zhoutian Formation of Jiangxi, China. The new ootaxon, Wormoolithus luxiensis oogen. et oosp. nov., is erected based on eggs collected from a partial clutch and represents the second oogenera of Similifaveoloolithidae. Wormoolithus shares some unique features with Similifaveoloolithus such as irregularly branched eggshell units, irregular cavities in the inner part of eggshell that are worm-like in tangential view and oblique pore canals in the outer part of the eggshell that show honeycomb-like structure in tangential view. And it is distinguished from the latter by longer polar axis and equatorial diameter and absence of compact layer. Although the clutch is not complete, the preserved parts show that the eggs are closely stacked in the nest. In addition, clay minerals that occur in pores and a high estimated water vapour conductance indicate a humid burial nest microenvironment.