Discovery and significance of dinosaur eggshells from the Early Cretaceous Ruyang basin
Author:
Affiliation:

1. Henan Natural History Museum, Zhengzhou, Henan 450016, China;2. National Natural History Museum of China, Beijing 100050, China;3. Key Laboratory of Vertebrate Evolution and Human Origins of Chinese Academy of Sciences, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing 100044, China

Clc Number:

Fund Project:

  • Article
  • |
  • Figures
  • |
  • Metrics
  • |
  • Reference
  • |
  • Related
  • |
  • Cited by
  • |
  • Materials
  • |
  • Comments
    Abstract:

    The Ruyang basin is a Meso-Cenozoic graben basin in western Henan Province. A dinosaur fauna, represented by giant sauropod dinosaurs was discovered in 2006. This paper describes several dinosaur eggshells recently discovered from the Lower Cretaceous Haoling Formation in the Ruyang basin. Based on analysis of the following macro and micro characteristics, these eggshells can be assigned to Elongatoolithus (Elongatoolithidae): dispersituberculate or linearituberculate ornamentation; two-layer eggshell structure that consists of a cone layer and a columnar layer from the bottom to top; cone layer composed of closely arranged cones; undulating parallel accretion line in the columnar layer. This discovery marks the first record of Elongatoolithus in the stratum of Early Cretaceous, which expands the geohistorical and geographical distribution of this oogenus. According to the previously known fossil connections, these eggshells may be related to the oviraptorrosaurs in the stratum such as Luoyanggia liudianensis , indicating a suitable living and breed environment for these dinosaurs at the late stage of Early Cretaceous in Ruyang basin.

    Reference
    Related
    Cited by
Get Citation

XIA Mengli, ZHU Xufeng, XU Li, CHANG Huali, JIA Songhai, LI Yu, YANG Lili, WANG Qiang.2023. Discovery and significance of dinosaur eggshells from the Early Cretaceous Ruyang basin[J]. Acta Geologica Sinica,97(5):1383-1389

Copy
Share
Article Metrics
  • Abstract:
  • PDF:
  • HTML:
  • Cited by:
History
  • Received:January 19,2023
  • Revised:
  • Adopted:
  • Online: July 13,2023
  • Published: