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1st Author:
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Zheng, Zhuo-guan
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2nd Author:
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3rd Author:
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Year:
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1981 |
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Title:
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Uppermost Permian (Changhsingian) ammonoids from Western Guizhou. |
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Reference:
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Acta Paleontologica Sinica, 20 (2): 107-114, fig.1-6, pl.1-3; Beijing. |
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Keywords:
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Permian (Changhsingian) ammon. |
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Link:
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