Morphometrics and palaeoecology of the coral Agetolites from the Xiazhen Formation (Upper Ordovician), Zhuzhai, South China

Ning Sun, Robert J. Elias, Suk-Joo Choh, Dong Chan Lee, Xun Lian Wang, Dong Jin Lee

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Sun, N., Elias, R.J., Choh, S.-J., Lee, D.-C., Wang, X.-L. & Lee, D.-J., February 2016. Morphometrics and palaeoecology of the coral Agetolites from the Xiazhen Formation (Upper Ordovician), Zhuzhai, South China. Alcheringa 40, xxx–xxx. ISSN 0311-5518. Agetolites is a peculiar cerioid coral possessing traits of both tabulates and rugosans. The presence of numerous mural pores has been considered by some workers to indicate a relation to tabulates, although an affinity to rugosans has also been proposed based mainly on well-developed septa that alternate in length. Agetolites is by far the most common colonial coral in the Upper Ordovician Xiazhen Formation at Zhuzhai, in the JCY (Jiangshan–Changshan–Yushan) triangle region of South China. It occurs in various lithofacies representing a wide range of depositional environments. Five species are recognized and verified by cluster analysis, discriminant analysis, descriptive statistics and bivariate plots: A. yushanensis Lin, 1960, A. raritabulatus Lin, 1960, A. waicunensis (Lin & Chow, 1977), A. oculiporoides Lin, 1960 (including A. huangi Lin, 1960 as a junior synonym) and A. maxima (Lin & Chow, 1977). Agetolitids from the JCY triangle described previously under the generic name Agetolitella are herein transferred to Agetolites. In the Xiazhen Formation at Zhuzhai, A. waicunensis and A. maxima are restricted to the lower part of the formation, whereas A. yushanensis occurs in the upper part. Agetolites raritabulatus and A. oculiporoides have greater stratigraphic ranges in the lower and upper parts of the formation. The size and shape of Agetolites coralla at Zhuzhai are considered primarily to be intrinsic characteristics of the species but in some cases also seem to be related to lithofacies; large and domical coralla are dominant in calcareous mudstone facies, whereas small coralla with various forms are commonly found in reef or reef-related facies. In the latter facies, spatial competition is indicated by common occurrences of both Agetolites encrusting stromatoporoids and stromatoporoids encrusting Agetolites. Ning Sun [nsun@cugb.edu.cn], School of Earth Sciences and Resources, China University of Geosciences, Beijing 100083, PR China; Robert J. Elias [eliasrj@cc.umanitoba.ca], Department of Geological Sciences, The University of Manitoba, Winnipeg, Manitoba R3T 2N2, Canada; Suk-Joo Choh [sjchoh@korea.ac.kr], Department of Earth and Environmental Sciences, Korea University, Seoul 136-701, Korea; Dong-Chan Lee [dclee@chungbuk.ac.kr], Department of Earth and Environmental Sciences, Chungbuk National University, Cheongju, 361-763, Korea; Xun-Lian Wang [wxl@cugb.edu.cn], School of Earth Sciences and Resources, China University of Geosciences, Beijing 100083, PR China; Dong-Jin Lee* [djlee@andong.ac.kr], Department of Earth and Environmental Sciences, Andong National University, Andong 760-747, Korea. *Also affiliated with College of Earth Science, Jilin University, Changchun 130061, PR China.

Original languageEnglish
Pages (from-to)1-24
Number of pages24
JournalAlcheringa
DOIs
Publication statusAccepted/In press - 2016 Feb 1

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paleoecology
Earth science
corals
Ordovician
coral
China
environmental science
Korean Peninsula
lithofacies
reef
Manitoba
resource
discriminant analysis
reefs
depositional environment
mudstone
cluster analysis
statistics
Canada

ASJC Scopus subject areas

  • Palaeontology
  • Ecology, Evolution, Behavior and Systematics

Cite this

Morphometrics and palaeoecology of the coral Agetolites from the Xiazhen Formation (Upper Ordovician), Zhuzhai, South China. / Sun, Ning; Elias, Robert J.; Choh, Suk-Joo; Lee, Dong Chan; Wang, Xun Lian; Lee, Dong Jin.

In: Alcheringa, 01.02.2016, p. 1-24.

Research output: Contribution to journalArticle

Sun, Ning ; Elias, Robert J. ; Choh, Suk-Joo ; Lee, Dong Chan ; Wang, Xun Lian ; Lee, Dong Jin. / Morphometrics and palaeoecology of the coral Agetolites from the Xiazhen Formation (Upper Ordovician), Zhuzhai, South China. In: Alcheringa. 2016 ; pp. 1-24.
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