Matsuoka, K. and Head, M.J.,
1992
Taxonomic revision of the Neogene marine palynomorphs Cyclopsiella granosa (Matsuoka) and Batiacasphaera minuta (Matsuoka) and a new species of Pyxidinopsis Habib (Dinophyceae) from the Miocene of the Labrador Sea.
In: Head, M.J. and Wrenn, J.H. (editors), Neogene and Quaternary Dinoflagellate Cysts and Acritarchs, p.165-180, pl.1-3; American Association of Stratigraphic Palynologists Foundation, Dallas, U.S.A.