Adeonellidae Temporal range: Eocene - Recent | |
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Family: | Adeonellidae Gregory, 1893 |
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The Adeonellidae is a family within the bryozoan order Cheilostomatida. Colonies are often upright bilaminar branches or sheets. The zooids generally have one or more adventitious avicularia on their frontal wall. Instead of ovicells the adeonids often possess enlarged polymorphs which brood the larvae internally.
The apparent similarity in characters to the family Adeonidae can makes their separation debatable. [1]
Cheilostomatida, also called Cheilostomata, is an order of Bryozoa in the class Gymnolaemata.
In the bryozoan order Cheilostomatida, the operculum is a calcareous or chitinous lid-like structure that protects the opening through which the polypide protrudes.
The Adeonidae is a family within the bryozoan order Cheilostomatida. Colonies are often upright bilaminar branches or sheets, perforated by large holes in some species. The zooids generally have one or more adventitious avicularia on their frontal wall. Instead of ovicells the adeonids often possess enlarged polymorphs which brood the larvae internally.
The Inversiulidae is a family within the bryozoan order Cheilostomatida. Colonies are often encrusting sheets on shells or rocks. The zooids are characterised by having an operculum that opens in the opposite way to other cheilostome genera; i.e. the hinge is located at the 'top' of the zooid.
The Arachnopusiidae is a family within the bryozoan order Cheilostomatida.
The Schizoporellidae is a family within the bryozoan order Cheilostomatida. Colonies are encrusting on shells and rocks or upright bilaminar branches or sheets. The zooidal orifice has a narrow V-shaped sinus.
Celleporidae is a family within the bryozoan order Cheilostomatida.
The Microporellidae is a family within the bryozoan order Cheilostomatida.
Calloporidae is a family of bryozoans belonging to the order Cheilostomatida.
Microporidae is a family of bryozoans belonging to the order Cheilostomatida.
Calwelliidae is a family of bryozoans belonging to the order Cheilostomatida.
Chaperiidae is a family of bryozoans belonging to the order Cheilostomatida.
Margarettidae is a family of bryozoans belonging to the order Cheilostomatida.
Gigantoporidae is a family of bryozoans belonging to the order Cheilostomatida.
Foveolariidae is a family of bryozoans belonging to the order Cheilostomatida.
Hippopodinidae is a family of bryozoans belonging to the order Cheilostomatida.
Hippoporidridae is a family of bryozoans belonging to the order Cheilostomatida.
Lacernidae is a family of bryozoans belonging to the order Cheilostomatida.
Siphonicytaridae is a family of bryozoans belonging to the order Cheilostomatida.
Poricellariidae is a family of bryozoans belonging to the order Cheilostomatida.