Fresvillia
Encyclopedia
Fresvillia is an extinct molluscan genus belonging to baculitid
Baculitidae
Baculitidae is a family of extinct ammonoid cephalopods that lived mostly during the Late Cretaceous, and often included in the suborder Ancyloceratina....

 family of the cephalopod order Ancyloceratida that lived during the Late Cretaceous, found in France. Baculitids are a kind of heteromorph ammonite characterized by a straight adult shaft preceded by a small coiled juvenile portion.

References

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