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Desmoceras difficile
Taxonomy
Ammonites difficilis was named by d'Orbigny (1840). It is a 3D body fossil.
It was recombined as Puzosia difficilis by Choffat (1888); it was recombined as Barremites difficilis by Vasicek (2002), Raisossadat (2024); it was recombined as Desmoceras difficile by Douvillé (1916), Benzaggagh (2025).
It was recombined as Puzosia difficilis by Choffat (1888); it was recombined as Barremites difficilis by Vasicek (2002), Raisossadat (2024); it was recombined as Desmoceras difficile by Douvillé (1916), Benzaggagh (2025).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1840 | Ammonites difficilis d'Orbigny p. 135 figs. Pl. 41 |
| 1841 | Ammonites difficilis d'Orbigny |
| 1888 | Puzosia difficilis Choffat p. 67 figs. Pl 2, fig 3 |
| 1916 | Desmoceras difficile Douvillé p. 106 |
| 2002 | Barremites difficilis Vasicek p. 192 figs. Pl 3, fig 4 |
| 2024 | Barremites difficilis Raisossadat p. 11 fig. 7G |
| 2025 | Desmoceras difficile Benzaggagh p. 11 figs. 8A-D |
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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.
†Desmoceras difficile d'Orbigny 1840
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Diagnosis
No diagnoses are available