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1 April 2017 A New Genus of the Corythoecidae (Paleozoic Radiolaria) from the Changhsingian (Uppermost Permian) Dalong Formation in Southern Guizhou, South China
Tsuyoshi Ito, Songzhu Gu, Yan Ai, Qinglai Feng
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Abstract

A new genus of the Corythoecidae (Albaillellaria, Radiolaria) was recovered from the Changhsingian (uppermost Permian) Dalong Formation in Guizhou Province, South China. Qiania Ito and Feng, gen. nov., containing Q. foremanae Ito and Feng, gen. et sp. nov. and Q. uncinata (Rudenko and Panasenko), is characterized by a conical shell consisting of an apical portion and an inflated region with a lateral foramen on the ventral side. The Corythoecidae were thought to range from the Late Devonian to Guadalupian (middle Permian). Therefore, this new find suggests the presence of this family until the latest Permian. Compilation of previous occurrences of corythoecids, in addition to those of Qiania, showed that most corythoecids including Qiania occurred in phosphate-rich facies, and that Qiania occurred in deeper facies than other corythoecids.

© by the Palaeontological Society of Japan
Tsuyoshi Ito, Songzhu Gu, Yan Ai, and Qinglai Feng "A New Genus of the Corythoecidae (Paleozoic Radiolaria) from the Changhsingian (Uppermost Permian) Dalong Formation in Southern Guizhou, South China," Paleontological Research 21(2), 131-137, (1 April 2017). https://doi.org/10.2517/2016PR005
Received: 10 April 2015; Accepted: 5 April 2016; Published: 1 April 2017
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KEYWORDS
Changhsingian
Corythoecidae
Dalong Formation
Paleozoic radiolaria
Qiania
South China
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