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Polysphaeridium

General Description Stratigraphy Literature Notes Species

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Age range (in million years)

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Image	Name	Original Description
	aquitanicum	Deunff, J. (1961a)
	*asperum*	Maier, D. (1959)
	assamicum	Sah, S.C.D., Kar, R.K. and Singh, R.Y. (1970)
	attadalense	Cookson, I.C. and Eisenack, A. (1982)
	*belgicum*	Pastiels, A. (1948)
	biforme	Wiesner, H. (1936)
	*biformum*	Islam, M.A. (1983b)
	breviatum	Morgenroth, P. (1966a)
	calvum	Tasch, P. (1964)
	cambayense	Varma, C.P. and Dangwal, A.K. (1964)
	*combibaculum*	Song Zhichen, Guan Xueting, Li Zengrui, Zheng Yahui, Wang Weiming and Hu Zhonghen (1985)
	*congregatum*	Stover, L.E. (1977)
	gliwicense	Mackó, S. (1957)
	grande	Salujha, S.K., Srivastava, N.C. and Rawat, M.S. (1969)
	hillii	Merril, J.A. (1895)
	hymenohystrichum	Liu Zhili, Liu Xuexian and Zheng Yuefang, (1992)
	lateraliprocessum	Srivastava, N.C. and Banerjee, D. (1969)
	mineralosum	Varma, C.P. and Dangwal, A.K. (1964)
	multicornutum	Kimyai, A. (1966)
	paracostatum	Cookson, I.C. and Eisenack, A. (1974)
	*parvum*	Huang Tsengchieng (1981)
	paucifurcatum	Cookson, I.C. and Eisenack, A. (1961b)
	perplexum	Varma, C.P. and Dangwal, A.K. (1964)
	raritanianum	Kimyai, A. (1966)
	sahii	Sah, S.C.D., Kar, R.K. and Singh, R.Y. (1970)
	senii	Srivastava, N.C. and Banerjee, D. (1969)
	sergipense	Regali, M.S.P., Uesugui, N. and Santos, Y.S. (1974)
	spinipansatum	Merril, J.A. (1895)
	*subtile*	Davey, R.J. and Williams, G.L. (1966b)
	*subtile ssp. ktana*	Rossignol, M. (1964)
	*taiwanianum*	Huang Tsengchieng (1981)
	*tianshanense*	He Chengquan (1991)
	*variabile*	He Chengquan (1991)
	verbinense	Deflandre, G. (1946a)
	*zoharyi*	Rossignol, M. (1962)
	*zoharyi ssp. ktana*	Rossignol, M. (1964)
	*zoharyi ssp. zoharyi*	Rossignol, M. (1962)