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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
	*amalthei*	Wetzel, W. (1966)
	*ambiguum*	Deflandre, G. (1937b)
	*asperum*	Maier, D. (1959)
	*assamicum*	Mehrota, N.C. (1983)
	*belgicum*	Pastiels, A. (1948)
	*biformum*	Islam, M.A. (1983b)
	*caminuspinum*	Wall, D. (1965a)
	*cephalum*	Kar, R.K. (1979)
	*chems*	Below, R. (1982c)
	*congregatum*	Stover, L.E. (1977)
	*conispinum*	Davey, R.J. and Verdier, J.-P. (1973)
	*daveyi*	Davey, R.J. and Verdier, J.-P. (1973)
	*deflandrei*	Valensi, L. (1947)
	*duma*	Below, R. (1982c)
	*elegantulum*	Lejeune-Carpentier, M. (1940)
	*elongatum*	Jain, K.P. and Millepied, P. (1975)
	*fabium*	Tasch, P., McClure, K. and Oftedahl, O. (1964)
	*flexuosum*	Davey, R.J., Downie, C., Sarjeant, W.A.S. and Williams, G.L. (1966)
	*fluctuans*	Eisenack, A. (1938c)
	*follium*	Tasch, P. (1964)
	*fucosum*	Valensi, L. (1955a)
	*giganteum*	Caro, Y. (1973)
	*granulosum*	Jain, K.P. and Millepied, P. (1975)
	*laminaspinosum*	Davey, R.J. and Williams, G.L. (1966b)
	*langii*	Wall, D. (1965a)
	*majus*	Lejeune-Carpentier, M. (1940)
	*marsupium*	Tasch, P. (1964)
	*microtriainum*	Klumpp, B. (1953)
	*multispinosum*	Davey, R.J. (1974)
	*ornamentum*	Jain, K.P. and Tandon, K.K. (1981)
	*pachydermum*	Cookson, I.C. and Eisenack, A. (1960b)
	*parvum*	Huang Tsengchieng (1981)
	*pastielsii*	Davey, R.J. and Williams, G.L. (1966b)
	*paulinae*	Valensi, L. (1953)
	*perovatum*	Tasch, P. (1964)
	*polypes*	Cookson, I.C. and Eisenack, A. (1962b)
	*pseudocolligerum*	Stover, L.E. (1977)
	*pumilum*	Davey, R.J. and Williams, G.L. (1966b)
	*punctatum*	Jain, K.P. and Millepied, P. (1975)
	*rhabdophorum*	Valensi, L. (1955b)
	*simplex*	White, H.H. (1842)
	*subtile*	Davey, R.J. and Williams, G.L. (1966b)
	*subtile ssp. ktana*	Rossignol, M. (1964)
	*sulaimenii*	Beju, D. (1978)
	*taiwanianum*	Huang Tsengchieng (1981)
	*tianshanense*	He Chengquan (1991)
	*tribrachiosum*	Tasch, P., McClure, K. and Oftedahl, O. (1964)
	*trompetum*	Cookson, I.C. and Eisenack, A. (1982)
	*variabile*	He Chengquan (1991)
	*warrenii*	()
	*williamsii*	Boltenhagen, E. (1977)
	*williereae*	Boltenhagen, E. (1977)
	*zoharyi*	Rossignol, M. (1962)
	*zoharyi ssp. ktana*	Rossignol, M. (1964)
	*zoharyi ssp. zoharyi*	Rossignol, M. (1962)