| Cerithioidea
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| A live individual of Terebralia palustris, family Potamididae | |
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| A beachworn shellofMaoricolpus roseus, family Turritellidae. Most of the body whorl has been broken off in this specimen, possibly by a predator such as a crab. | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Superfamily: | Cerithioidea Fleming, 1822 |
| Diversity[2] | |
| 1092-1164 extant species
about 200 extant genera | |
The Cerithioidea is a superfamily of marine, brackish water and freshwater gastropod containing more than 200 genera. The Cerithoidea are included unassigned in the subclass Caenogastropoda. The original name of this superfamily was Cerithiacea, in keeping with common superfamily endings at the time.
Cerithioidea is a very diverse superfamily. Its species can be found worldwide mainly in tropic and subtropic seas on rocky intertidal shores, seagrass beds and algal fronds, but also in estuarine and freshwater habitats. The freshwater species are found on all continents, except Antarctica. They are dominant members of mangrove forests, estuarine mudflats, fast-flowing rivers and placid lakes.[3]
Their fossil record of this superfamily can be traced back as far as the early Triassic[1][4] but they began radiating mainly during the Cretaceous.[5]
The Cerithioidea are presumed to be monophyletic (one lineage).[6] However the phylogenetic relationships between its families are still under investigation because mitochondrial recombinant DNA sequences failed to resolve these questions.[citation needed]
According to the Taxonomy of the Gastropoda (Bouchet & Rocroi, 2005),[7] the following families are included in Cerithioidea:
(Extinct taxa indicated by a dagger, †.)
It is possible that a further detailed examination may show that the polyphyletic families Melanopsidae and Pleuroceridae are one family. There is also a close phylogenetic relationship between the families Modulidae and Potamididae and between the families Cerithiidae and Litiopidae.
Bandel (2006)[1] made numerous changes in Cerithioidea. He classified superfamily Cerithioidea in the clade Cerithimorpha.[1]
Changes include:
superfamily Cerithioidea
![[icon]](https://akarinohon.com/text/taketori.cgi/en.wikipedia.org/wiki/File:Wiki_letter_w_cropped.svg){kind=small} |
This section needs expansion. You can help by adding to it. (August 2010)
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In the updated taxonomy by Bouchet et al. (2017)are listed below:[9][10]
Unassigned:
The following two extinct families were moved out:
| Cerithioidea |
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