Late Permian rugose corals from Gyanyima of Drhada, Tibet (Xizang), Southwest China

The rugose corals described in this study were collected from the Gyanyima section in the Ngari region of southwestern Tibet (Xizang) and are assigned to three genera and 11 species, including a new genus and seven new species: Waagenophyllum (Waagenophyllum) ngariense He, 1990; W. (W.) elegantulum...

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Bibliographic Details
Published in:Journal of paleontology 2019-09, Vol.93 (5), p.856-875
Main Authors: Wang, Xiaojuan, Wang, Xiangdong, Zhang, Yichun, Cao, Changqun, Lee, Dongjin
Format: Article
Language:English
Subjects:
Anthozoa
Asia
biogeography
Burang China
Changhsingian
China
Cnidaria
Coral reefs
Corals
Far East
faunal studies
Fossils
Gyanyima Formation
Gyanyimaphyllum crassiseptatum
invertebrate
Ipciphyllum
lithostratigraphy
Lopingian
morphology
New genera
New genus
New species
new taxa
Ngari China
Ontogeny
Paleontology
Paleozoic
Permian
Physical characteristics
Rugosa
Shells
Stauriida
Taxonomy
Upper Permian
Waagenophyllidae
Waagenophyllum
Xizang China
Zoantharia
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Description
Summary:The rugose corals described in this study were collected from the Gyanyima section in the Ngari region of southwestern Tibet (Xizang) and are assigned to three genera and 11 species, including a new genus and seven new species: Waagenophyllum (Waagenophyllum) ngariense He, 1990; W. (W.) elegantulum He in Luo et al., 1989; W. (W.) minutum Zhao, 1981; W. (W.) tachtabulasicumIlyina, 1997; W. (W.) gyanyimaense n. sp., W. (W.) intermedium n. sp., Waagenophyllum (Liangshanophyllum) clisicolumellum n. sp., Ipciphyllum naoticum n. sp., I. floricolumellum n. sp., I. zandaense n. sp., and Gyanyimaphyllum crassiseptatum n. gen. n. sp. Ontogeny and intraspecific variation are given special attention when describing and discussing these taxa. Coral reefs, with Waagenophyllum as the major skeletal reef builder, occur in several horizons in the uppermost part of the section. The accompanying foraminifers indicate the rugose coral fauna is a late Permian Changhsingian age. Therefore, this is possibly one of the latest Permian rugose coral reefs in the world known up to now.
ISSN:0022-3360
1937-2337
DOI:10.1017/jpa.2019.37