Glomerula

Not to be confused with Glomerulus.
Glomerula
Temporal range: 199–0 Ma[1]

Jurassic - present

Glomerula gordialis from the Upper Cretaceous of Germany
Scientific classification
Kingdom: Animalia
Subkingdom: Eumetazoa
Phylum: Annelida
Class: Polychaeta
Subclass: Palpata
Order: Canalipalpata
Suborder: Sabellida
Family: Sabellidae
Genus: Glomerula
Brünnich Nielsen, 1931
Species
  • Glomerula piloseta
  • Glomerula gordialis†
  • Glomerula serpentina†
  • Glomerula lombricus†
  • Glomerula plexus†
Glomerula piloseta, longitudinal section of the tube

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]

References

  1. 1 2 Jäger, M. (2004). "Serpulidae und Spirorbidae (Polychaeta sedentaria) aus Campan und Maastricht von Norddeutschland, den Niederlanden, Belgien und angrenzenden Gebieten". Geologisches Jahrbuch. A 157: 121–249.
  2. ↑ Perkins, T.H. (1991). "Calcisabella piloseta, new genus and species of Sabellinae (Polychaeta: Sabellidae)". Bulletin of Marine Science. 48 (2): 261–267.
  3. ↑ Vinn, O.; ten Hove, H.A.; Mutvei, H. (2008). "On the tube ultrastructure and origin of calcification in sabellids (Annelida, Polychaeta)". Palaeontology. 51 (2): 295–301. doi:10.1111/j.1475-4983.2008.00763.x. Retrieved 2012-10-22.
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