西藏申扎地区奥陶纪鹦鹉螺类化石的新材料  

NEW MATERIALS OF ORDOVICIAN NAUTILOIDS FROM XAINZA,TIBET

作　　者：程立人[1] 张以春[1] 张予杰[2] 

机构地区：[1]吉林大学地球科学学院,长春130061 [2]成都地质矿产研究所,成都610082

出　　处：《古生物学报》2006年第4期533-539,共7页Acta Palaeontologica Sinica

基　　金：中国地质调查局西藏申扎地区1:25万区域地质调查资助课题

摘　　要：塔尔玛桥东-扎扛一带是近年发现的藏北地区第二个有可靠生物化石依据的奥陶系出露区。描述的鹦鹉螺化石是该区鹦鹉螺化石的一小部分,包括1新属、2新种和1未定种,分别是Taermaocerasgen.nov.,Taer-maocerasregularegen.etsp.nov.,Taermaocerasovatumgen.etsp.nov.及Taermaocearssp.。Eastern Taerma bridge-Zhakang was found in recent years to be the second spot of Ordovician outcrop based on reliable fossils. The nautiloids described here include one new genus, two new species and one indeterminate species,which represent only a small fraction of the nautiloids collected from this area. They are new materials of Ordovician nautiloids that have been determined up to now, which enrich Ordovician nautiloid faunal assemblages as well as provide new data to both classification and correlation of the Ordovician for this area and geographical distribution of nautiloid fauna.

关 键 词：鹦鹉螺化石 奥陶纪 申扎地区 西藏 

分 类 号：Q915[天文地球—古生物学与地层学]