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Paleontological Research
Abstract
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.
We are most grateful to Noritoshi Suzuki (Tohoku University) for his suggestive and detailed comments that greatly improved the previous draft and this manuscript. We also thank Editor in Chief, Yasufumi Iryu (Tohoku University), Atsushi Takemura (Hyogo University of Teacher Education), and two anonymous reviewers for their constructive comments on the manuscript. This work was financially supported by National Natural Science Foundation (Grant No. 40839903), Research Fund for the Doctoral Program of Higher Education (Grant No. 20110145130001) and special funding from the State Key Laboratory of Geological Processes and Mineral Resources. The authors thank to Suxin Zhang for her help when we used a SEM in the State Key Laboratory in China University of Geosciences, Wuhan.
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