In Baculites, a straight shelled ammonite, the constructional limits on shell shape resulting from the limited strength of nacre in tension are circumvented by a system of vaults in the phragmocone.
Click to open image viewer. CC0 Usage Conditions ApplyClick for more information. This specimen is a Baculite. Baculites is an extinct genus of marine mollusk that lived during most of the Late ...
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