Journal
CRETACEOUS RESEARCH
Volume 113, Issue -, Pages -Publisher
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.cretres.2020.104491
Keywords
Cladoceran; Ephippium; Branchiopod; Early Cretaceous; Jehol Biota
Categories
Funding
- National Key Research and Development Program of China [2016YFC0600406]
- National Science Fund for Distinguished Young Scholars of China [41925008]
- Strategic Priority Research Program of the Chinese Academy of Sciences [XDB26000000, XDB18000000]
- National Natural Science Foundation of China [41688103]
- China Postdoctoral Science Foundation [2018M643543]
- State Key Laboratory of Palaeobiology and Stratigraphy (Nanjing Institute of Geology and Palaeontology, CAS) [183118]
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Freshwater branchiopod communities exhibit morphological and ecological stasis with the remote past. Here, we describe a new freshwater branchiopod community from the Lower Cretaceous Dabeigou Formation near Weichang County, northern Hebei Province (China), representing an early assemblage of the famous Jehol Biota. This branchiopod community consists of notostracans, conchostracans and cladocerans. Our new discovery of cladoceran ephippia in this community is described and discussed. These Ceriodaphnia-like ephippia are saddle-shaped in outline, and each ephippium has one oval egg with its long axis parallel to dorsal margin. They represent the oldest known ephippia record from China. Our discovery broadens our knowledge about reconstruction of the early assemblage and palaeoecology of the Jehol Biota. (C) 2020 Elsevier Ltd. All rights reserved.
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