Glomerula is a genus of polychaete worm in the family Sabellidae.

It differs from all other Sabellidae in having a calcareous tube and spinose setae.

Only one living species, G. piloseta, is known from Lizard Island, Great Barrier Reef, Australia.

[2] The oldest fossils of Glomerula are known from the Early Jurassic[1] and their tube microstructure has remained unchanged since then.

[3]