Biology:Dybowskites

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Short description: Extinct genus of bryozoan

Dybowskites
Temporal range: Ordovician-Silurian 457.5–433.4 Ma
Scientific classification e
Domain: Eukaryota
Kingdom: Animalia
Phylum: Bryozoa
Class: Stenolaemata
Order: Trepostomatida
Family: Ralfimartitidae
Genus: Dybowskites
Pushkin 1987

Dybowskites is an extinct genus of bryozoan of the family Ralfimartitidae, found in the Ordovician and Silurian periods. It forms branching, frond-like, or sometimes segmented colonies. In cross-sections of the colonies, the tubular autozooecia are seen growing alongside the branch axis and then bending abruptly to reach the colony surface at a perpendicular angle. There are many mesozooecia and large acanthostyles that protrude from the colony surface.[1]

Species

Two species are recognized:[2]

  • Dybowskites clava Bassler 1911
  • Jiménez-Sánchez 2009 †Dybowskites ernsti

References

  1. Ernst, Andrej; Key, Marcus (2007). "Upper Ordovician Bryozoa from the Montagne de Noire, Southern France". Journal of Systematic Palaeontology 5 (4): 395–397. doi:10.1017/S1477201907002155. 
  2. "Dybowskites Pushkin 1987". https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=25259. 

Wikidata ☰ Q18520368 entry