湖南花垣中寒武世晚期至晚寒武世早期牙形石动物群(英文)

LATE MIDDLE AND EARLY LATE CAMBRIAN CONODONTS FROM HUAYUAN,HUNAN

本文描述了湖南花垣排碧剖面中寒武世晚期至晚寒武世早期牙形石动物群的2个新属(Hu-nanognathus gen.nov.,Paibiconus gen.nov.)8个新种(Albiconus?tricornis,Furnishina bigtmina-ta,Hunanognathus tricuspidatus,Paibiconus proarcuatus,Westergaardodina brevidens,W.grandi-dens,W.horizontalis,W.tetragonia)。论述了在中国南部首次建立的湖南花垣中—上寒武统牙形石带与华北和东北南部相应牙形石带的对比依据。概述了中国寒武纪牙形石研究的简史和现状。

A total of 1 200kg of limestone samples of Middle--Upper Cambrian from Huayuan,Hunan,have been examined for conodonts. The Middle --Upper Cambrian conodont zones andagnostid zones have been erected. The correlation between these conodont zones and those ofNorth and Northeast China is expounded. Thirty-three species of 11 genera are figured. New-ly established genera are: Hunanognathus, Paibiconus. New species are: Albiconus? tricornis,Furnishina bigeminata, Hunanognathus tricuspidatus, Paibiconus proarcuatus, Westergaardo-dina brevidens, W. grandidens, W. horizontalis, W. tetragonia.