藏南岗巴地区晚白垩世宗山组Bournonia及其功能形态研究  

BOURNONIAFROM THE LATE CRETACEOUS ZONGSHAN FORMATION OF GAMBA , XIZANG , AND THE FUNCTIONAL MORPHOLOGY OF RUDIST BIVALVES

作　　者：饶馨[1] 沙金庚[1] 泮燕红[1] 蔡华伟[1] 

机构地区：[1]中国科学院南京地质古生物研究所,现代古生物学和地层学国家重点实验室,南京210008

出　　处：《古生物学报》2012年第4期491-501,共11页Acta Palaeontologica Sinica

基　　金：国家自然科学基金(40872013)资助

摘　　要：提要描述藏南岗巴地区白垩系宗山组产出的两种固着蛤Bournonia haydeni Douville,1916,Bournonia tibetica Douville,1916,并据化石材料和野外观察的资料,讨论其功能形态特征。根据生活习性,固着蛤的生态类型可被分为三种:直立型(elevators),附着型(clingers)和侧卧型(recumbents)。Bournonia tibetica属于直立型,Bournonia haydeni属于附着型。Abundant rudists occur in the late Cretaceous Zongshan Formation at Gamba, in southern Xizang. Previous researchers have recorded four genera and seven species. The authors went to Gamba to collect and survey the geological profile in 2009, one genus and two species were identified. Bournonia haydeni Douville and Bournonia tibetica Douville. On the basis of their mode of life habit, rudist morphotypes can be divided into three function groups, elevators, clingers and recumbents. Bournonia tibetica belongs to elevators, and Bournonia haydeni to clingers.

关 键 词：Bournonia 固着蛤 功能形态 宗山组 晚白垩世 岗巴 

分 类 号：Q914[天文地球—古生物学与地层学]