Glomerula

Glomerula Temporal range: 199–0 Ma PreЄ Є O S D C P T J K Pg N Jurassic - present
Glomerula gordialis from the Upper Cretaceous of Germany
Scientific classification
Kingdom:	Animalia
Phylum:	Annelida
Class:	Polychaeta
Order:	Canalipalpata
Family:	Sabellidae
Genus:	Glomerula Brünnich Nielsen, 1931
Species
Glomerula piloseta Glomerula gordialis† Glomerula serpentina† Glomerula lombricus† Glomerula plexus†

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