cyrtocone
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English
[edit]![](http://upload.wikimedia.org/wikipedia/commons/thumb/2/2f/Cyrtoceras_NT_small.jpg/220px-Cyrtoceras_NT_small.jpg)
Etymology
[edit]Noun
[edit]cyrtocone (plural cyrtocones)
- (malacology) A curved (cyrtoconic) form of the young shell that succeeds the more primitive orthocone in nautiloid cephalopods.
- Coordinate term: cyrtoceracone