Permophricodothyris
Pavlova, 1965 (Brachiopoda, Spiriferida) from the Permian of South China: its morphology, biostratigraphy and distribution |
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Authors: | Guang R Shi Zhong-Qiang Chen Nai-Ren Han |
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Institution: | (1) School of Ecology and Environment, Deakin University, Melbourne Campus, 21 Burwood Highway, 3125 Burwood, Vic, Australia;(2) Department of Geology, Guilin College of Geology, Guilin, China |
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Abstract: | A study of both silicified and nonsilicified specimens of Permian reticularioid brachiopods from South China suggests thatPermophricodothyris, a genus previously rarely reported from China, is actually very common and abundant in the Middle and especially Upper Permian
of South China. This study also clarifies, for the first time, that many of the reticularioid brachiopod species previously
described asSquamularia in fact belong toPermophricodothyris. The new data presented in this paper also allows a critical evaluation ofPermophricodothyris in relation to its closest allies:Phricodothyris, Squamularia, Bullarina andNeophricodothyris. The revision reveals that a total of 18Permophricodothyris species are present in the Middle and Upper Permian of South China, with only one species,P. squamularioides, having survived the Permian-Triassic mass extinction. Two species,P. grandis (Chao) andP. guangxiensis
Han, Zhou & Wang, are redescribed here, providing critical new information on the morphology and taxonomy of these species. |
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Keywords: | Brachiopoda Spiriferida Permophricodothyris Permian South China |
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