University of Bristol logo Fossil group banner, with title and coposite picture of fossils


Major Subgroups of Bryozoa

 

Class: Gymnolaemata

Order: Cheilostomata

 

Geological Range: Jurassic - Recent

 

Description: Box-shaped calcareous zooids. Orifice closed by a hinged operculum. Embryos brooded in ovicells. There are four suborders, defined on the mechanism by with the lophophore is protruded. The image below shows an SEM photo of a colony of Antropora leucocypha. Colonies of A. leucocypha are encrusting in single or multiple layers, and are typically a whitish to pink or magenta color. Individual zooids are variable in shape, but are generally oval, narrowing toward the distal portion.

 

 

 

Photo by J. Winston, courtesy of Smithsonian Marine Station,
Fort Pierce, FL.

 

Back to Subgroups Table

 



Author: Luke Mander
Last updated: 20.11.05
Return to Fossil groups home page

 


Websites produced by students on the MSc Palaeobiology programme in the Department of Earth Sciences at the University of Bristol for academic year 2005-6