Geminigeraceae is a family of cryptophytes containing the five genera Geminigera, Guillardia, Hanusia, Proteomonas and Teleaulax.

[1] 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).

[1] This Cryptomonad-related article is a stub.