河北省磁县虎皮脑晚寒武世和早奥陶世牙形石  

LATE CAMBRIAN AND EARLY ORDOVICIAN CONODONTS FROM HUPINAO OF CIXIAN COUNTY,HEBEI PROVINCE

作　　者：裴放 巴燕 PEI Fang;BA Yan(Henan Institute of Geological Sciences,Zhengzhou 450001;Henan Instiute of Geosciences,Zhengzhou 450001)

机构地区：[1]河南省地质科学研究所,郑州450001 [2]河南省地质研究院,郑州450001

出　　处：《微体古生物学报》2023年第3期206-215,共10页Acta Micropalaeontologica Sinica

摘　　要：在河北省磁县虎皮脑寒武纪–奥陶纪地层剖面发现晚寒武世和早奥陶世牙形石。晚寒武世牙形石包括Hirsutodontus rarus, Teridontus nakamurai,属于华北地区上寒武统凤山阶Proconodontus-Rotundoconus带牙形石。早奥陶世牙形石主要有Paraserratognathus partodiformis, P. problematicus, P. obesus, Scolopodus mancordatus, S.rexhuolianzhaiensis,Drepanodussubarcuatus,属于华北地区下奥陶统亮甲山组上部Paraserratognathus带牙形石。本文描述牙形石6属13种,其中包括l新种, 1亲近种。The Late Cambrian and Early Ordovician conodonts have been found from Hupinao of Cixian County,Hebei Province.The Late Cambrian conodonts comprise Hirsutudontus rarus,Teridontus nakamurai,belonging to the Proconodontus-Rotundoconus Zone of the Upper Cambrian Fengshanian Stage.The Early Ordovician conodonts include Paraserratognathus paltodiformis,P.problematicus,P.obesus,Scolopodus mancordatus,S.rex huolianzhaiensis,Drepanodus subarcuatus,belonging to the Early Ordovician Paraserratognathus paltodiformis zone of the Upper part of Liangjiashan Formation.Six conodont genera and thirteen species are described in this paper,including one new species and one affinis.

关 键 词：牙形石 晚寒武世 早奥陶世 虎皮脑 河北 

分 类 号：Q915.2[天文地球—古生物学与地层学] P534.4[生物学—古生物学]