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Alterbia

General Description Stratigraphy Literature Notes Species

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Age range (in million years)

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Image	Name	Original Description
	acribes	Davey, R.J. and Verdier, J.-P. (1971)
	*acuminata*	Cookson, I.C. and Eisenack, A. (1958)
	acutula	Wilson, G.J. (1967b)
	*ambigua*	He Chengquan (1991)
	*amphiata*	McIntyre, D.J. (1975)
	asymmetrica	Wilson, G.J. (1967a)
	bakeri	Deflandre, G. and Cookson, I.C. (1955)
	*balmei*	Cookson, I.C. and Eisenack, A. (1960a)
	*bellula*	He Chengquan (1991)
	bicavata	Jain, K.P. and Millepied, P. (1973)
	bicellula	Islam, M.A. (1983b)
	circula	Heilmann-Clausen, C. (1985)
	*curvicornis*	Vozzhennikova, T.F. (1967)
	daveyi	Stover, L.E. and Evitt, W.R. (1978)
	dilwynensis	Cookson, I.C. and Eisenack, A. (1965c)
	distincta	Wilson, G.J. (1967a)
	*earnleyensis*	Islam, M.A. (1983b)
	*ectorugosa*	Archangelsky, S. (1969b)
	eyrensis	Cookson, I.C. and Eisenack, A. (1971)
	foliacea	Eisenack, A. and Cookson, I. (1960)
	ingramii	Cookson, I.C. and Eisenack, A. (1970a)
	macrocysta	Cookson, I.C. and Eisenack, A. (1960a)
	mauthei	Riegel, W. (1974)
	*microgranulata*	Stanley, E.A. (1965)
	*minor*	Alberti, G. (1959b)
	*montanaensis*	Harland, R. (1977a)
	obscura	Drugg, W.S. (1967)
	*ovalis*	He Chengquan (1991)
	pellucida	Deflandre, G. and Cookson, I.C. (1955)
	pentaradiata	Cookson, I.C. and Eisenack, A. (1965c)
	*pentaradiata ssp. pentaradiata*	Cookson, I.C. and Eisenack, A. (1965c)
	*pentaradiata ssp. preceda*	Cookson, I.C. and Eisenack, A. (1974)
	*pilosa*	Davey, R.J. (1969b)
	*polymorpha*	Malloy, R.E. (1972)
	*puyangensis*	He Chengquan, Zhu Shenzhao and Jin Guangxing (1989)
	*raijae*	Kjellström, G. (1973)
	recticornis	Vozzhennikova, T.F. (1967)
	*rhombohedra*	Benson, D.G. (1976)
	*subtilis*	Zheng Yahui and He Chengquan (1984)
	*xinjiangensis*	He Chengquan (1991)