燕辽生物群的两件蛙嘴翼龙类新标本及对蛙嘴翼龙类头骨的新解释
Two anurognathid pterosaur specimens from the Yanliao Biota and a new interpretation of anurognathid skulls
摘要
Abstract
Anurognathids are a clade of small,early-diverging non-pterodactyloid pterosaurs distributed across Eurasia from the Middle Jurassic to the Early Cretaceous.Their defining characteristic is a short and broad skull,a morphology distinct from all other pterosaur clades.Due to limited preservation,the cranial anatomy of this group has long been difficult to understand in detail.In this study,we provide a detailed description of two anurognathid specimens from the Tiaojishan Formation of the Yanliao Biota.The relatively well-preserved skull of one specimen was reconstructed through computed tomographic scanning.This reveals a unique skull element,possibly functionally analogous to the supraorbital bone of varanid lizards.The CT reconstruction offers new insights into the anurognathid skull.Based on these findings,we revised the skulls of previously described taxa,ultimately integrating them into a new reconstruction for this clade.We present a detailed comparative analysis and discussion of the postcranial osteology within Anurognathidae.关键词
燕辽生物群/髫髻山组/翼龙/蛙嘴翼龙类/古尾翼龙属Key words
Yanliao Biota/Tiaojishan Formation/Pterosaur/Anurognathid/Cascocauda分类
生物科学引用本文复制引用
佟仕达,蒋顺兴,程心,汪筱林..燕辽生物群的两件蛙嘴翼龙类新标本及对蛙嘴翼龙类头骨的新解释[J].古脊椎动物学报（中英文）,2026,64(2):191-220,30.基金项目
国家自然科学基金(批准号:42072017,42288201,42572026)资助. This manuscript is dedicated to Prof.Chang Meemann,who has generously supported our pterosaur research.We had the honor of naming Gegepterus changae after her in 2007.We thank Xiang Long for preparing the specimens,Song Junyi and Xu Yizhi for their helpful discussions,and Hou Yemao and Yin Pengfei for their assistance with CT scanning(IVPP).We also thank Zhang Yuguang and Liu Di(NHMC),Liu Fengxiang and Tan Kai(GMC),Sun Zhenyuan and Wang Cai(JZMP),Zhang Ying,Li Xuemin,and Lü Huiwen(Changyang Paleontological Museum)and O.W.M.Rauhut(BSP)for kindly providing access to the specimens.This work was supported by the National Natural Science Foundation of China(42072017,42288201,and 42572026). （批准号:42072017,42288201,42572026）
