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Dufrenoyia dufrenoyi
Taxonomy
Ammonites dufrenoyi was named by d'Orbigny (1840). It is not a trace fossil. It is the type species of Dufrenoya.
It was recombined as Dufrenoya dufrenoyi by Stoyanow (1949); it was recombined as Dufrenoyia dufrenoyi by Renz (1982) and Bersac and Bert (2019).
It was recombined as Dufrenoya dufrenoyi by Stoyanow (1949); it was recombined as Dufrenoyia dufrenoyi by Renz (1982) and Bersac and Bert (2019).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1840 | Ammonites dufrenoyi d'Orbigny p. 200 figs. pl. 33, figs. 3-6 |
| 1949 | Dufrenoya dufrenoyi Stoyanow p. 124 |
| 1982 | Dufrenoyia dufrenoyi Renz p. 23 |
| 2019 | Dufrenoyia dufrenoyi Bersac and Bert p. 154 figs. Pl 5, figs 30-32 |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
†Dufrenoyia dufrenoyi d'Orbigny 1840
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Diagnosis
No diagnoses are available