Dybkjær, 2004
From dinoflaj3
Dybkjær, K., 2004: Morphological and abundance variations in Homotryblium-cyst assemblages related to depositional environments: uppermost Oligocene - lower Miocene, Jylland, Denmark. Palaeogeography. Palaeoclimatology. Palaeoecology. v.206, p.41-58, pl.1-2.