[关键词]
[摘要]
[Key word]
[Abstract]
An exceptionally large specimen of Permian ammonoid genus Shengoceras is reproted from Guangxi South China．T he giant size and the matured stage of the suture extend the definition of this genus and its subfamily intaxonomy of Permian cyclolobids．
[中图分类号]
Q914
[基金项目]
国家自然科学基金( 49472078)资助项目；
