First report of Devonian bactritids (Cephalopoda) from South America: paleobiogeographic and biostratigraphic implications

Author:

Cichowolski Marcela,Rustán Juan J.

Abstract

AbstractDevonian bactritids are described for the first time from South America. They come from siliciclastic rocks of the Talacasto Formation in the Precordillera Basin, west-central Argentina. The host strata span the Lochkovian–Emsian and contain other non-ammonoid cephalopods as well, thus refuting the alleged virtual absence of cephalopods in circumpolar Devonian basins from southwestern Gondwana (the Malvinokaffric Realm). We reportBactrites gracilisandDevonobactrites? sp., whose wide distribution contrasts with the endemic paleobiogeographic signature of some other taxonomic groups in these basins. Furthermore, new Lochkovian and Pragian records ofBactritessp. provide new insights into the earliest bactritid records worldwide.

Publisher

Cambridge University Press (CUP)

Subject

Paleontology

Reference125 articles.

1. Estratigrafía de la Sierra de Santa Victoria y adyacencias;Turner;Boletín de la Academia Nacional de Ciencias (Córdoba),1960

2. Lamellorthoceratids (Cephalopoda, Orthoceroidea) from the Lower Devonian of New York;Stanley;The University of Kansas Paleontological Contributions,1976

3. Vergleichende Morphologie und Phylogenie der Anfangskammern tetrabranchiater Cephalopoden. Eine Studie uber Herkunft, Stammesentwicklung und System der niederen Ammoneen;Schindewolf;Abhandlungen der Preußischen Geologischen Landesanstalt, Neue Folge,1933

4. Upper Silurian cephalopods from Southwestern Sardinia;Serpagli;Bollettino della Società Paleontologica Italiana,1977

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3