Acteon chevallieri
Extinct species of gastropods

Acteon chevallieri is an extinct species of sea snail, a marine gastropod mollusc in the family Acteonidae.
Distribution
Fossils of this marine species have been found in Eocene strata in Picardy, France.
References
Le Renard, J. & Pacaud, J. (1995). Révision des mollusques Paléogènes du Bassin de Paris. II. Liste des références primaires des espèces. Cossmanniana. 3: 65–132.
External links
Deshayes, G. P. (1861-1864). Description des animaux sans vertèbres découverts dans le bassin de Paris pour servir de supplément à la Description des coquilles fossiles des environs de Paris comprenant une revue générale de toutes les espèces actuellement connues. Tome deuxiéme.
The public source identifies “Acteon chevallieri” as extinct species of gastropods. This brief keeps that definition visible, then builds a research path around Acteon, chevallieri and Extinct.
Why this record matters
A short description can identify a subject without explaining its stakes. For “Acteon chevallieri”, the useful work is to connect “extinct species of gastropods” to the records capable of establishing context and consequence.
The date and method of observation matter as much as the stated conclusion, especially where classification or consensus has changed. The source revision retrieved here is dated May 20, 2026. The linked authority identifier is Q125052754. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1995, 1861 and 1864.
Scientific names, classifications and consensus can change while older terminology persists in catalogues and historical literature. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Check terminology, classification and the date of the cited evidence. Scientific names and technical consensus can change while older records retain historical value.
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Primary datasets, specimen catalogues, standards bodies and the most recent peer-reviewed literature.
Three-step research path
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- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
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This entry incorporates text from “Acteon chevallieri” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.