Jump to content

Dybowskites

From Wikipedia, the free encyclopedia

Dybowskites
Temporal range: Ordovician-Silurian 457.5–433.4 Ma
Scientific classification Edit this classification
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

[edit]

Two species are recognized:[2]

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

References

[edit]
  1. ^ Ernst, Andrej; Key, Marcus (2007). "Upper Ordovician Bryozoa from the Montagne de Noire, Southern France". Journal of Systematic Palaeontology. 5 (4): 395–397. Bibcode:2007JSPal...5..359E. doi:10.1017/S1477201907002155. S2CID 85115257.
  2. ^ "Dybowskites Pushkin 1987". Palaeobiology Database.