Steidinger and Davis, 1967
From dinoflaj2
Steidinger, K.A. and Davis, J.T., 1967: The genus Pyrophacus, with a description of a new form. Florida Board of Conservation, Division of Salt Water Fisheries, Marine Laboratory, St. Petersburg, Florida, Leaflet Series, v.1 - Phytoplankton, part 1 (Dinoflagellates), 3, p.1-8.