Craspedida
phase contrast image of Monosiga brevicollis
Scientific classification
Domain:	Eukaryota
Class:	Choanoflagellatea
Order:	Craspedida Cavalier-Smith, 1997, emend. Nitsche et al. 2011
Families
Codonosigidae Salpingoecidae

Craspedida is an order of choanoflagellate, with members with an exclusively organic covering.

Craspedid genera

Salpingoeca rosetta

S. rosetta has been named for the rosette-shaped colonies formed by its cells. Recent studies show a bacterial sulfonolipid, called rosette inducing factor (RIF-1) produced by Algoriphagus machipongonensis triggers colony formation in S. rosetta.^{[citation needed]}