Geminigeraceae is a family of cryptophytes containing six genera.Guiry, M.D. & Guiry, G.M. 2025. AlgaeBase. World-wide electronic publication, University of Galway. https://www.algaebase.org; searched on 14 May 2026. They are characterised by chloroplasts containing Cr-phycoerythrin 545, and an inner periplast component (IPC) comprising "a sheet or a sheet and multiple plates if diplomorphic". The nucleomorphs are never in the pyrenoid, and there is never a scalariform furrow. The cells do, however, have a long, keeled rhizostyle with lamellae (wings).
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