Trepostomatida (the trepostomates) is an extinct order of bryozoans in the class Stenolaemata. Trepostome bryozoans possessed mineralized calcitic skeletons and are frequently fossilized; some of the largest known fossilized bryozoan colonies are branching trepostomes and massive dome-shaped trepostomes. [3] Trepostomes did not have many specialized zooecia beyond ordinary feeding autozooecia. The two main known heteromorphs are exilazooecia and mesozooecia, which had the purpose of maintaining regular spacing between autozooecia. [4]
| Trepostomatida Temporal range: | |
|---|---|
 | |
| Esthoniopora, a trepostome from the Ordovician of Estonia (cross-section). | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Bryozoa |
| Class: | Stenolaemata |
| Order: | †Trepostomatida Ulrich 1882[1] |
| Families | |
| Synonyms | |
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See also
References
External links
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