Contribution
Carboniferous conodont zonation of China
Hu, Keyi; Qi, Yuping; Qie, Wenkun; Wang, Qiulai
Newsletters on Stratigraphy Volume 53 Number 2 (2020), p. 141 - 190
publié: Mar 25, 2020
publication en ligne: Jun 29, 2019
manuscrit accepté: Feb 6, 2019
revision du manuscrit reçu: Feb 6, 2019
révision du manuscrit demandée: Sep 12, 2018
manuscrit reçu: Aug 3, 2018
ArtNo. ESP026005302001, Prix: 29.00 €
Abstract
Carboniferous conodonts from the candidate GSSPs of the four stages Serpukhovian, Moscovian, Kasimovian and Gzhelian in the Naqing and the adjacent sections of South China have been intensely studied in recent decades. The Carboniferous conodont zonation of China is updated based on the conodont material from South China; 39 conodont zones including 11 Tournaisian zones, 4 Visean zones, 3 Serpukhovian zones, 6 Bashkirian zones, 5 Moscovian zones, 5 Kasimovian zones and 5 Gzhelian zones are separated and discussed in detail. Species of the genera Siphonodella, Polygnathus, Protognathodus and Gnathodus dominate the zonation for Early Mississippian (Tournaisian) strata, Pseudognathodus, Lochriea and Gnathodus are most important for the zonation for Middle and Late Mississippian (Visean and Serpukhovian) strata, Declinognathodus, Idiognathoides, Neognathodus provide the zonation of early Bashkirian strata and Diplognathodus, Mesogondolella, Idiognathodus and the related genera Swadelina and Streptognathodus provide the zonation for late Bashkirian through the middle and late Pennsylvanian interval. In South China, the Carboniferous conodont zonation is mainly characterized by deep-water conodont biofacies with Siphonodella, Lochriea, Gnathodus, Declinognathodus, Idiognathoides, “Streptognathodus” expansus group, Diplognathodus and Streptognathodus. The updated Carboniferous conodont zonation of China is dominated mainly by cosmopolitan species, which may eventually allow refined global correlation.
Mots-clefs
Carboniferous • conodont • zonation • China • global correlation