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Tetrachacysta

General Description Stratigraphy Literature Notes Species

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Image	Name	Original Description
	*allenii*	Backhouse, J. (1988)
	*amphidoxosum*	Jiabo (1978)
	*baculata*	Backhouse, J. (1988)
	*biconvexa*	Jiabo (1978)
	*biconvexa ssp. biconvexa*	Jiabo (1978)
	*biconvexa ssp. granulata*	Liu Zhili, Liu Xuexian and Zheng Yuefang, (1992)
	*biconvexa ssp. laevigata*	Liu Zhili, Liu Xuexian and Zheng Yuefang, (1992)
	*dawanensis*	Liu Zhili, Liu Xuexian and Zheng Yuefang, (1992)
	*granulata*	Jiabo (1978)
	*keenei*	Marshall, N.G. (1989)
	*magnusa*	Liu Zhili, Liu Xuexian and Zheng Yuefang, (1992)
	*minuta*	Liu Zhili, Liu Xuexian and Zheng Yuefang, (1992)
	*multispinosa*	Xu Jinli, Pan Zhaoren, Yang Yumei, Zhu Youhua and Fan Naimin, (1997)
	*parvita*	Liu Zhili, Liu Xuexian and Zheng Yuefang, (1992)
	*spinosigibberosa*	Brideaux, W.W. and Fisher, M.J. (1976)
	*spinulosa*	Gao Ruiqi, He Chengquan and Qiao Xiuyun (1992)
	*tuberculata*	Gao Ruiqi, He Chengquan and Qiao Xiuyun (1992)

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