Trithyrodinium evittii Drugg 1967 and Trithyrodinium fragile Davey 1969 an artificially split of one dinoflagellate cyst species: Stratigraphic and palaeoenvironmental importance.
Reference:
Nиhr-Hansen,H. et al. (1999)
Trithyrodinium evittii Drugg 1967 and Trithyrodinium fragile Davey 1969 an artificially split of one dinoflagellate cyst species: Stratigraphic and palaeoenvironmental importance. Grana
Vol. 38 # 3 P. 125- 133