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17 June 2021 Katian (Late Ordovician) conodonts on the northwestern margin of the North China Craton
Zhihua Yang, Xiuchun Jing, Hongrui Zhou, Xunlian Wang, Hui Ren, Yang Shen, Ru Fan
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Abstract

Upper Ordovician strata exposed from the Baiyanhuashan section is the most representative Late Ordovician unit in the northwestern margin of the North China Craton (NCC). In total, 1,215 conodont specimens were obtained from 24 samples through the Wulanhudong and Baiyanhuashan formations at the Baiyanhuashan section. Thirty-six species belonging to 17 genera, including Tasmanognathus coronatus new species, are present. Based on this material, three conodont biozones—the Belodina confluens Biozone, the Yaoxianognathus neimengguensis Biozone, and the Yaoxianognathus yaoxianensis Biozone—have been documented, suggesting that the Baiyanhuashan conodont fauna has a stratigraphic range spanning the early to middle Katian. The Baiyanhuashan conodont fauna includes species both endemic to North China and widespread in tropical zones, allowing a reassessment of the previous correlations of the Katian conodont zonal successions proposed for North China with those established for shallow-water carbonate platforms at low latitudes.

Copyright © 2021, The Author(s) Published by Cambridge University Press on behalf of The Paleontological Society
Zhihua Yang, Xiuchun Jing, Hongrui Zhou, Xunlian Wang, Hui Ren, Yang Shen, and Ru Fan "Katian (Late Ordovician) conodonts on the northwestern margin of the North China Craton," Journal of Paleontology 95(4), 805-826, (17 June 2021). https://doi.org/10.1017/jpa.2021.11
Accepted: 31 January 2021; Published: 17 June 2021
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