| Craspedida | |
|---|---|
 | |
| phase contrast image ofMonosiga brevicollis | |
Scientific classification | |
| Domain: | Eukaryota |
| Class: | Choanoflagellatea |
| Order: | Craspedida Cavalier-Smith, 1997, emend. Nitsche et al. 2011 |
| Families | |
Craspedida is an order ofchoanoflagellate, with members with an exclusively organic covering. Crown group craspedids (and perhaps crown group choanoflagellates if Acanthoecida arose within Craspedida[1]) appeared 422,78 million years ago.[2] Although a previous study from 2017 recovered the divergence of the crown group choanoflagellates (craspedids) at 786.62 million years.[3]
Salpingoeca 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 byAlgoriphagus machipongonensis triggers colony formation inS. rosetta.[citation needed]
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