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Heterosphaeridium

General Description Stratigraphy Literature Notes Species

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Age range (in million years)

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Image	Name	Original Description
	araneosum	Brideaux, W.W. (1977)
	*bellii*	Radmacher, W., Tyszka, J. and Mangerud, G., (2014b)
	*conjunctum*	Cookson, I.C. and Eisenack, A. (1968)
	*cordiforme*	Yun Hyesu (1981)
	*difficile*	Manum, S. and Cookson, I.C. (1964)
	*galiciae*	Masure, E. (1988c)
	*heteracanthum*	Deflandre, G. and Cookson, I.C. (1955)
	*heteracanthum ssp. heteracanthum*	()
	*heteracanthum ssp. sparsiprocessum*	Varma, C.P. and Dangwal, A.K. (1964)
	latoaculeus	Yun Hyesu (1981)
	multifurcatum	Deflandre, G. (1937b)
	*spinaconjunctum*	Yun Hyesu (1981)
	*verdieri*	Yun Hyesu (1981)

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