Stenolaemata

Hallopora sp.

  • Worldwide

The Stenolaemata form a class of bryozoans ( Ectoprocta, also called Bryozoa ), which occurs exclusively in salt water ( marine). This class includes only a recent order, the cyclostomes, with about 175 genera and was particularly widespread in the Cretaceous period. Among the extinct orders of this class include, among others the Cystopora and Cryptostomata. First fossils of Stenolaemata date from the Ordovician.

Construction

The Cystide are long, cylindrical and tapered back and have no closure apparatus. Open pores between neighboring animals allow mass exchange, there is no body wall muscles and the Egg development takes place in the Gonozoiden

System

  • Class: Stenolaemata Order: Cyclostomata (from Ordovician ) Family: Phaceloporidae Subfamilies: Clonoporinae, Corynotrypinae, Sagenellinae, Phaceloporinae

Swell

  • Rieger, Reinhard; West Heath, Wilfried: Systematic Zoology 1 spectrum; Stuttgart 2006; ISBN 3-8274-1575-6
  • Hennig, Dr. Willi: Invertebrates I. Handbook of Special Zoology. Jena: Fischer, 1994; ISBN 3-8252-1831-7
  • Remane, Adolf; Storch, Volker; Welsch, Ulrich: Systematic Zoology. Berlin: Spektrum Akademischer Verlag 2003; ISBN 3-8274-1112-2
  • Ulrich Lehmann and Gero Hillmer: Invertebrates of antiquity: a guide to the systematic paleontology of invertebrates. 2nd edition, Stuttgart: Ferdinand Enke Verlag, Stuttgart, 1988; ISBN 3-432-90652-8
Mya (unit) Eumetazoa Cyclostomatida Genus
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