CAJ | 학술논문

在宜昌黄花场剖面弗洛期原Oepikodus evae带牙形刺生物地层系统研究的基础上,笔者等讨论了Stolodus stola,L.gladiatus,O.intermedius,Oepikodus communis,Prioniodus honghuayuanensis等重要的多分子器官种分类问题.认为Oepikodus epae带上部时限范围内并未见Oepikodus epae分子,所以与国际地层指南(2000)关于间隔带和延限带的含义相悖.本文通过对黄花场剖面牙形刺样品补充采样、系统检查和厘定原O.evae带内一些牙形石属种分类,分析了牙形刺垂向分布特征.厘定了原Stolodus stola亚带的首现层位,修订了原Oepikodus evae带的含义.在此基础上,以牙形刺带分子首现为标志,将红花园组上部--大湾组下段自下而上划分为4个间隔带和3个亚带.其中4个间隔带为:Prioniodus honghuayuanensis带,O.ecae带,Trapezognathus didrion带和Baltoniodus cf.B.triangularis带.其中Prioniodus honghuayuanensis带,Trapezognathus diprion带,Baltoniodus cf.B.triangularis带为新建化石带.并在Trapezognathus diprion和Baltoniodus cf.B.triangularis带时限范围内划分3个亚带:Stolodus stola亚带,Oepikodus intermedius亚带,Microzkodina sp.A.亚带;其中Oepikodus intermedius亚带,Microzkodina sp.A.亚带为新建亚带.由于黄花场剖面中Trapezognathus diprion带-Baltoniodus cf.B.trangularis带时限范围内发现丰富的Reutterodus andinus,Oepikodus intermedius,Juanognathus variabilis等暖水型牙形刺,故此这两个间隔带可为北美中大陆地区同期地层划分对比提供良好的标准.这一划分方案也为进行洲际间不同生物地理分区的精细地层划分对比提供了详实的资料.
재의창황화장부면불락기원Oepikodus evae대아형자생물지층계통연구적기출상,필자등토론료Stolodus stola,L.gladiatus,O.intermedius,Oepikodus communis,Prioniodus honghuayuanensis등중요적다분자기관충분류문제.인위Oepikodus epae대상부시한범위내병미견Oepikodus epae분자,소이여국제지층지남(2000)관우간격대화연한대적함의상패.본문통과대황화장부면아형자양품보충채양、계통검사화전정원O.evae대내일사아형석속충분류,분석료아형자수향분포특정.전정료원Stolodus stola아대적수현층위,수정료원Oepikodus evae대적함의.재차기출상,이아형자대분자수현위표지,장홍화완조상부--대만조하단자하이상화분위4개간격대화3개아대.기중4개간격대위:Prioniodus honghuayuanensis대,O.ecae대,Trapezognathus didrion대화Baltoniodus cf.B.triangularis대.기중Prioniodus honghuayuanensis대,Trapezognathus diprion대,Baltoniodus cf.B.triangularis대위신건화석대.병재Trapezognathus diprion화Baltoniodus cf.B.triangularis대시한범위내화분3개아대:Stolodus stola아대,Oepikodus intermedius아대,Microzkodina sp.A.아대;기중Oepikodus intermedius아대,Microzkodina sp.A.아대위신건아대.유우황화장부면중Trapezognathus diprion대-Baltoniodus cf.B.trangularis대시한범위내발현봉부적Reutterodus andinus,Oepikodus intermedius,Juanognathus variabilis등난수형아형자,고차저량개간격대가위북미중대륙지구동기지층화분대비제공량호적표준.저일화분방안야위진행주제간불동생물지리분구적정세지층화분대비제공료상실적자료.