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1. chinaXiv:201808.00143 [pdf]

New ootype prismatoolithids from the Late Cretaceous, Laiyang Basin and its significance

WANG Qiang; LI Yu-Guang; ZHU Xu-Feng; FANG Kai-Yong; WANG Xiao-Lin
Subjects: Biology >> Other Disciplines of Biology

Here we discribe a new ootypes of prismatoolithids found from the Late Cretaceous Jiangjunding Formation in the Laiyang Basin, Shandong Province. On the basis of characters such as elongate ovoids, smooth eggshell surface, relatively thinner eggshell thickness, prismatic eggshell units, slender pores in radial section of eggshell and little pores with round or irregular shapes in tangeital section of eggshell, we erect one new oogenus and one new oospecies: Laiyangoolithus lixiangensis oogen. et oosp. nov. The discovery of L. lixiangensis not only enriches the diversity and composition of the Laiyang Dinosaur Egg Fauna, but the paleogeographic distribution of primatoolithids as well. In addition, it provides more paleontological materials for the study of the diversity and paleogeographic distribution of troodontids in China.

submitted time 2018-07-18 From cooperative journals:《古脊椎动物学报》 Hits3305Downloads674 Comment 0

2. chinaXiv:201801.00509 [pdf]

The first Stalicoolithus shifengensis discovered in a clutch from the Sanshui Basin, Guangdong Province

ZHU Xu-Feng; FANG Kai-Yong; WANG Qiang; LU Xiao-Hong; WU Wei-Qiang; DU Yan-Li; HUANG Zhi-Qing; WANG Xiao-Lin
Subjects: Geosciences >> Geology

The first clutch of Stalicoolithus shifengensis is described here. This incomplete dinosaur egg clutch in which three nearly complete eggs and two egg prints were preserved was discovered in the red deposits of the Sanshui Formation at a construction site near the sluice of North Village, Dali Town, Nanhai District, Foshan City, Guangdong Province, China. The eggs in the clutch are stacked with various ranges. Based on the characteristics of the eggshell, these eggs can be assigned to S. shifengensis. The discovery of S. shifengensis in the Sanshui Formation complements the clutch information about the oospecies as well as expands its paleogeographic distribution, and sets the foundation for discussing the diversity of dinosaur eggs in the Sanshui Basin.

submitted time 2018-01-23 From cooperative journals:《古脊椎动物学报》 Hits4300Downloads938 Comment 0

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