Some Middle Jurassic dinocysts from the Brent Group of the northern North Sea
Abstract. Selected dinocyst taxa from the Brent Group equivalent (Bathonian-Aalenian) of the northern North Sea are described. The diagnosis of Dissiliodinium (Drugg 1978) is emended. Two new species: Dissiliodinium willei and Durotrigia aspera are introduced. In addition, several new taxa are informally described and illustrated.