Author	Feist-Burkhardt, S.
Year	1990
Journal	Bull. Centres Rech. Explor.-Prod. Elf-Aquitaine vol.14, 2 pp.611-633 figs.9 pl.6Bull. Centres Rech.
Title	Dinoflagellate cyst assemblages of the Hausen coreholes (Aalenian to Early Bajocian), Southwest Germany

Abstract Feist-Burkhardt, S. (1990); Dinoflagellate assemblages of the Hausen coreholes (Aalenian to Early Bajocian), southwest Germany. Bull. Centres Rech. Explor.-Prod. Elf-Aquitaine 14, 2, 611-633, 6pl., 9 fig. Abstract: Twenty samples from two coreholes, drilled near Hausen an der Fils, Southwest Germany, have been studied palynologically. The samples are dated of the Aalenian (top opalinium Zone to concavum Zone) and the Early Bajocian (laeviuscula Zone). Sixteen genera and eighteen species of dinoflagellate cysts are documented. The dinoflagellate cyst assemblages successively increase in diversity from the Aalenian to the Early Bajocian. A major change in the composition of the palynoflora is observed at the Aalenian/Bajocian boundary. The assemblages are compared with those reported from Europe and other areas (Australia, Arctic Canada) and four marker species are considered, characterizing the Aalenian/Bajocian boundary: Carpathodinium sp. A, Dissiliodinium giganteum n. sp., ?Dissiliodinium sp. A and Durotrigia daveyi BAILEY 1987. The genus Dissiliodinium DRUGG 1978 is discussed and a new species Dissiliodinium giganteum n. sp., is described from the latest Aalenina/Early Bajocian.