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Surculosphaeridium

General Description Stratigraphy Literature Notes Species

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Age range (in million years)

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Image	Name	Original Description
	*alagoense*	Regali, M.S.P., Uesugui, N. and Santos, Y.S. (1974)
	aquitanicum	Deunff, J. (1961a)
	*argentinense*	Pöthe de Baldis, E.D. (1986)
	assamicum	Sah, S.C.D., Kar, R.K. and Singh, R.Y. (1970)
	attadalense	Cookson, I.C. and Eisenack, A. (1982)
	*basifurcatum*	Yun Hyesu (1981)
	*belowii*	Yun Hyesu (1981)
	biforme	Wiesner, H. (1936)
	breviatum	Morgenroth, P. (1966a)
	*calcigerum*	De Coninck, J. (1986b)
	calvum	Tasch, P. (1964)
	cambayense	Varma, C.P. and Dangwal, A.K. (1964)
	*cassospinum*	Yun Hyesu (1981)
	*convocatum*	Fensome, R.A., Nøhr-Hansen, H. and Williams, G.L., (2016b)
	*cribrotubiferum*	Sarjeant, W.A.S. (1960a)
	*cribrotubiferum ssp. cribrotubiferum*	Sarjeant, W.A.S. (1960a)
	*cribrotubiferum ssp. granulosum*	Jain, K.P. (1977b)
	*divarispinosum*	Jain, K.P. (1977b)
	gliwicense	Mackó, S. (1957)
	grande	Salujha, S.K., Srivastava, N.C. and Rawat, M.S. (1969)
	*granulatum*	Wetzel, W. (1952)
	hillii	Merril, J.A. (1895)
	hymenohystrichum	Liu Zhili, Liu Xuexian and Zheng Yuefang, (1992)
	lateraliprocessum	Srivastava, N.C. and Banerjee, D. (1969)
	*longifurcatum*	Firtion, F. (1952)
	mineralosum	Varma, C.P. and Dangwal, A.K. (1964)
	multicornutum	Kimyai, A. (1966)
	*oceaniae*	De Coninck, J. (1969)
	orbifera	Klement, K.W. (1960)
	*palmatum*	Duxbury, S. (2019)
	paracostatum	Cookson, I.C. and Eisenack, A. (1974)
	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)
	*scissospinum*	Yun Hyesu (1981)
	senii	Srivastava, N.C. and Banerjee, D. (1969)
	sergipense	Regali, M.S.P., Uesugui, N. and Santos, Y.S. (1974)
	*spinicongregatum*	Yun Hyesu (1981)
	spinipansatum	Merril, J.A. (1895)
	*stella*	Wetzel, W. (1952)
	*suggestium*	McMinn, A. (1988)
	*trunculum*	Davey, R.J. (1979b)
	varispinosa	Brenner, W. (1988)
	verbinense	Deflandre, G. (1946a)
	*vestitum*	Deflandre, G. (1939a)