A new species of chaoyangopterid pterosaur from the Early Cretaceous in western Liaoning, China

被引：0

作者：

Ji S. ^{[1
]}

Zhang L. ^{[2
]}

Lu F. ^{[3
]}

机构：

[1] Key Laboratory of Stratigraphy and Palaeontology, Ministry of Natural Resources, Institute of Geology, Chinese Academy of Geological Sciences, Beijing

[2] South China Sea Culture Museum, Hainan Tropical Ocean University, Hainan, Sanya

[3] Sanya Dinosaur Fossil Museum, Hainan, Sanya

来源：

Dizhi Xuebao/Acta Geologica Sinica | 2023年 / 97卷 / 06期

关键词：

Chaoyangopteridae; Early Cretaceous; Jiufotang Formation; Ptcrodactyloidea; Shenzhoupterus sanyainus sp. nov; western Liaoning;

D O I：

10.19762/j.cnki.dizhixuebao.2023322

中图分类号：

学科分类号：

摘要：

The Early Cretaceous pterosaurs arc abundant in the western Liaoning Province, China with two pterosaur assemblages. The upper one, pterosaur assemblage of the Jiufotang Formation is featured by some advanced pterodactyloid clades including toothless Tapcjaridac and Chaoyangopteridae, which show differences from the lower one, pterosaur assemblage of the Yixian Formation. A new large-sized pterosaur skeleton is described here, which was found in the Jiufotang Formation of the Jianchang basin, western Liaoning. This specimen can be assigned to the genus Shenzhoupterus within the family Chaoyangopteridae as it possesses the following features: toothless jaws, rostral index being 3. 7, long and slender premaxillary bar dorsally bounding the nasoantorbital fenestra, caudal extremity of the very large nasoantorbital fenestra posterior to the jaw joint, and broader base of premaxillary process of jugal. It is also distinguished from Shenzhoupterus chaoyangensis in having the characters such as: large size with the wing-span about 2.05 meters, straight occlusal margin of upper and lower jaws, longer postorbital process with slightly wider base than lacrimal process of jugal, and sequentially decreased fourth to seventh cervical vertebrae. Thus a new species, Shenzhoupterus sanyainus sp. nov., is established. This new taxon possesses the largest wing-span among the Early Cretaceous toothless pterosaurs from western Liaoning Province. The finding also enriches the elements of pterosaur assemblage of the Jiufotang Formation, and is of significance for understanding the anatomy and ecological habits of chaoyangopterids. © 2023 Geological Society of China. All rights reserved.

引用

页码：1723 / 1740

页数：17

共 29 条

[21]

Wenhao Wu, Changfu Zhou, Andres B., The toothless pterosaur J idapterus edentus (Pterodactyloidea: Azhdarchoidea) from the Early Cretaceous Jehol Biota and its paleoecological implications, PLoS ONE, 12, 9, (2017)

[22]

Xiaochun Wu, Jinling Li, Xiaolin Wang, Shunxing Jiang, Xin Cheng, Palaeovertebrata Sinica, Volume II Amphibians, Reptilians, and Avians, Fascicle 4 Basal Archosauromorphs, Crocodylomorphs, and Pterosaurs, (2017)

[23]

Wu Zijie, Gao Fuliang, Pan Yuqi, Wang Xuan, Division and correlation of the Jiufotang Formation and their rare fossil-bearing beds in western Liaoning, China, Geoscience, 32, 4, pp. 758-765, (2018)

[24]

Zhiqiang Yu, Min Wang, Youjuan Li, Chenglong Deng, Huaiyu He, New geochronological constraints for the Lower Cretaceous Jiufotang Formation in Jianchang basin, NE China, and their implications for the late Jehol Biota, Palaeogeography, Palaeoclimatology, Palaeoecology, 583, (2021)

[25]

Xinjun Zhang, Shunxing Jiang, Xin Cheng, Xiaolin Wang, New material of Sinopterus (Pterosauria, Tapejaridae) from the Early Cretaceous Jehol Biota of China, Anais da Academia Brasileira de Ciencias, 91, (2019)

[26]

Changfu Zhou, A new eucryptodiran turtle from the Early Cretaceous Jiufotang Formation of western Liaoning, China, Zootaxa, 2676, pp. 45-56, (2010)

[27]

Changfu Zhou, New material of Chaoyangopterus (Pterosauria: Pterodactyloidea) from the Early Cretaceous Jiufotang Formation of western Liaoning, China, Neues Jahrhuch fur Geologie und Palaontologie, Ahhandlungen, 257, pp. 341-350, (2010)

[28]

Zhou Shuang, Zhou Zhonghe, O'Connor J K., A new basal beaked ornithurine bird from the Lower Cretaceous of western Liaoning, China, Vertehrata PalAsiatica, 50, 1, pp. 9-24, (2012)

[29]

Zhonghe Zhou, Fucheng Zhang, Li Zhiheng, A new basal ornithurine bird(Jianchangornis microdonta gen. et sp. nov.) from the Lower Cretaceous of China, Vertehrata PalAsiatica, 47, 4, pp. 299-310, (2009)

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