A new progobiaeshnid dragonfly (Odonata, Aeshnoptera) from the Lower Cretaceous of Liaoning Province, NE China

Starting in the early 1950s, paleontologists began to discover a wide range of Cretaceous terrestrial fossils in the Laiyang, Qingshan, and Wangshi groups of the Jiaolai Basin which resides in the eastern part of the Shandong Peninsula of northern China. Significant specimens from these deposits include various dinosaur eggs, footprints, and fossils including hadrosauroids, tyrannosaurids, and ankylosaurids. These expanded understanding of evolution, biodiversity, and paleoecology in East Asia. While many examples of the Jehol Biota from this area are not well constrained in terms of their stratigraphy and geochronology, previous studies have generally suggested that fossils from this region represent the second or third phase of Jehol Biota development. This paper reviews fossils, stratigraphic correlations, tectonic history, and age estimates for the less well-studied outcrops of the Shandong Peninsula that host Jehol Biota. We report three new 40Ar/39Ar ages for the Qingshang Group and discuss how these somewhat imprecise ages still constrain chronostratigraphic interpretation for the fossil-rich units.

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A new progobiaeshnid dragonfly (Odonata, Aeshnoptera) from the Lower Cretaceous of Liaoning Province, NE China

Cited by 2 publications

References 14 publications

New Lower Cretaceous aeshnopteran dragonflies from western Liaoning, NE China (Odonata: Anisoptera)

New Lower Cretaceous aeshnopteran dragonflies from western Liaoning, NE China (Odonata: Anisoptera)

Jehol fossils from the Jiaolai Basin of Shandong, North China: review and new perspectives

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