古脊椎动物学报（中英文）2026，Vol.64Issue(2)：151-166,16.DOI:10.19615/j.cnki.2096-9899.260206
云南广南早泥盆世坡松冲组鱼类化石新材料
Early Devonian fish material from Posongchong Formation of Guangnan,Yunnan,China
摘要
Abstract
New findings of early vertebrates,including placoderms,sarcopterygians,and the galeaspids Sanqiaspis rostrata,Macrothyraspis longicornis,Gantarostraspis gengi,Wenshanaspis sp.,are described from Posongchong Formation(Pragian,Lower Devonian)in Zhujie,Guangnan County,Wenshan Prefecture,Yunnan,China.The new specimen of Macrothyraspis longicornis exhibits the ventral side of its headshield,revealing a large branchial chamber encompassed by a very narrow ventral rim.The material of Yunnanolepidoidei and Petalichthyida represents the first fossil record of placoderms from Wenshan Prefecture,southwestern Yunnan.These new findings enrich the fish diversity of the Pragian Xujiachong Vertebrate Assemblage and provide additional paleoichthyological data for the biostratigraphic correlation between Posongchong Formation and its coeval strata in southwestern China and northern Vietnam.关键词
云南文山广南/坡松冲组/早泥盆世/布拉格期/盔甲鱼类/盾皮鱼类Key words
Guangnan,Wenshan,Yunnan/Posongchong Formation/Early Devonian/Pragian/galeaspids/placoderms分类
生物科学引用本文复制引用
鲜祖敏,莫雄,关奇,赵应天,薛钦元,李强,刘军平,朱敏..云南广南早泥盆世坡松冲组鱼类化石新材料[J].古脊椎动物学报（中英文）,2026,64(2):151-166,16.基金项目
国家自然科学基金(批准号:42362001,92255301)资助. This work is dedicated to Prof.CHANG Meemann for her 90th birthday.We are grateful to CUI Xin-Dong,NI Hong-Mei,Cao Yin-Di for their assistance in the fieldwork.This research was funded by the National Natural Science Foundation of China(42362001,92255301). （批准号:42362001,92255301）
