Price and Pospelova, 2014
From dinoflaj3
Price, A.M. and Pospelova, V., 2014: Spiniferites multisphaerus, a new dinoflagellate cyst from the Late Quaternary of the Guaymas Basin, Gulf of California, Mexico. Palynology, v.38, p.101-116, pl.1-5.