Stenolaemata

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Stenolaemata
Temporal range: Ordovician–Recent
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Bryozoa
Class: Stenolaemata
Borg, 1926
Orders

See text

Stenolaemata are a

marine bryozoans. Stenolaemates originated and diversified in the Ordovician, and more than 600 species are still alive today.[1] All extant (living) species are in the order Cyclostomatida, the third-largest order of living bryozoans.[2]

These animals are stationary suspension feeders that live on the ocean floor. They formed colonies with robust, calcified exoskeletons, allowing for a high potential for fossil preservation. The individual zooids in the colony may be tubular, conical, or sac-shaped. Each individual, or zooid, may extend from the colony at an angle, extending its tentacles to feed.[1] The fossil genus Batostoma in the order Trepostomatida existed in monticular colonies.

Stenolaemates were the predominant bryozoan group during the

Permian extinction event, and most stenolaemates were extinct by the start of the Jurassic.[5]

However, the

cheilostome bryozoans in the class Gymnolaemata diversified around the same time. Nevertheless, cyclostomates are still major components of modern marine ecosystems.[5]

Extant and extinct orders in this class include:[1][6][5][4]

References

  1. ^ a b c Stenolaemata. The Digital Atlas of Ordovician Life.
  2. ^ Ramalho, L. V., G. Muricy, and P. D. Taylor. (2009). Cyclostomata (Bryozoa, Stenolaemata) from Rio de Janeiro State, Brazil. Zootaxa 2057 32–52.
  3. ISBN 0-03-056747-5
    .
  4. ^ a b Jun-ye, Ma; Buttler, Caroline J.; Taylor, Paul D. (2014). "Cladistic analysis of the 'trepostome' Suborder Esthonioporina and the systematics of Palaeozoic bryozoans". Studi Trent. Sci. Nat. 94: 153–161.
  5. ^
    S2CID 82475898
    .
  6. ^ Borg (1926). Bock P (ed.). "Stenolaemata". World list of Bryozoa. World Register of Marine Species. Retrieved 10 February 2020.

External links

Wikimedia Commons has media related to Stenolaemata.
  • Bock, P. (2015). Stenolaemata. In: Bock, P.; Gordon, D. (2015). World List of Bryozoa. Accessed through the World Register of Marine Species.
  • Stenolaemata. Fossil works.
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