Earliest Silurian graptolites from Kalpin, western Tarim, Xinjiang, China

A graptolite fauna containing 13 species in seven genera is described from the basal part of the Middle Member of the Kalpintag Formation, in the Kalpin region of Xinjiang Province, northwestern China. The taxa are Avitograptus sp. aff. A. avitus (Davies), Hirsutogroptus jideliensis (Koren' &am...

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Bibliographic Details
Published in:Bulletin of Geosciences
Main Authors: Wang, Wenhui, Muir, Lucy A., Chen, Xu, Tang, Peng
Format: Report
Language:English
Published: CZECH GEOLOGICAL SURVEY 2015
Subjects:
Graptoloidea
earliest Silurian
Xinjiang Province
China
END-ORDOVICIAN EXTINCTION
ARCTIC CANADA
GLOBAL CORRELATION
MASS EXTINCTION
YANGTZE REGION
SOUTH CHINA
BOUNDARY
BIOSTRATIGRAPHY
CORNWALLIS
PHYLOGENY
Geology
Paleontology
Geosciences
Multidisciplinary
Arctic
Canada
Cornwallis
Koren
Online Access:http://ir.nigpas.ac.cn/handle/332004/21546
https://doi.org/10.3140/bull.geosci.1549
Description
Summary:A graptolite fauna containing 13 species in seven genera is described from the basal part of the Middle Member of the Kalpintag Formation, in the Kalpin region of Xinjiang Province, northwestern China. The taxa are Avitograptus sp. aff. A. avitus (Davies), Hirsutogroptus jideliensis (Koren' & Mikhailova). Korenogroptus laciniosus (Churkin & Carter), K. jerini (Koren & Melchin), K. aff. K. magnus (Churkin & Carter), Metabolograptus wangjiawanensis (Mu & Lin), M. porvulus (Lapworth), Normolograpilis ajjeri (Legrand), N. angustus (Perner), N. mirnyensis (Obut & Sobolevskaya), Paromplexograptus madernii (Koren' & Mikhailova), Par.? sp., and Persculptograptus sp. Approximately half of the species described have not been previously recorded from the Kalpin region. An early Silurian (Rhuddanian) age is indicated by H. jideliensis and K. jerini. The graptolite fauna recovered from the four sections in the Kalpin region shares numerous common species with faunas from the Yangtze region of China and from southern Kazakhstan.

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