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Type: Article
Published: 2021-04-29
Page range: 156–164
Abstract views: 302
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Taxonomy of the clam shrimp Halysestheriidae (Diplostraca: Spinicaudata) from the Upper Cretaceous Nenjiang Formation in central Dayangshu Basin of eastern Inner Mongolia, northeastern China

State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology and Center for Excellence in Life and Paleoenvironment, Chinese Academy of Sciences, East Beijing Road 39, Nanjing 210008, PR China
General Diplostraca Spinicaudata clam shrimp Halysestheriidae taxonomy Upper Cretaceous Nenjiang Formation Dayangshu Basin


A re-examination of the holotype of the type species Halysestheria biformis Zhang & Chen in Zhang et al., 1976 has revealed new characters that were overlooked in the original description. And a taxonomic research was carried out on the clam shrimp collected from the Upper Cretaceous Nenjiang Formation in the central Dayangshu Basin in Ganhe, Oroqen Autonomous Banner, eastern Inner Mongolia. The discovery of Halysestheria biformis indicates the fossil bearing horizon belongs to the upper Santonian First Member of the Nenjiang Formation.


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