Pospelova and Head, 2002
From dinoflaj3
Pospelova, V. and Head, M.J., 2002: Islandinium brevispinosum sp. nov. (Dinoflagellata), a new organic-walled dinoflagellate cyst from modern estuarine sediments of New England (USA). Journal of Phycology, v.38, p.593-601.