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Spiniferites primaevus

Year	Author	Title
1992	Costa, L.I. and Davey, R.J.	Dinoflagellate cysts of the Cretaceous System
1977	Duxbury, S.	A palynostratigraphy of the Berriasian to Barremian of the Speeton Clay of Speeton, England
2001	Duxbury, S.	A palynological zonation scheme for the Lower Cretaceous - United Kingdom sector, central North Sea.
1987	Heilmann-Clausen, C.	Lower Cretaceous dinoflagellate biostratigraphy in the Danish Central Trough
1991b	Monteil, E.	Morphology and systematics of the ceratiod group: A new morphographic approach. Revision and emendation of the genus Muderongia Cookson and Eisenack 1958
1992	Riding, J.B. and Thomas, J.E.	Dinoflagellate cysts of the Jurassic System