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Barremites difficilis
Taxonomy
Ammonites difficilis was named by d'Orbigny (1840). It is the type species of Barremites.
It was recombined as Puzosia difficilis by Choffat (1888); it was recombined as Desmoceras difficile by Douvillé (1916); it was recombined as Barremites difficilis by Vasicek (2002) and Raisossadat (2024).
It was recombined as Puzosia difficilis by Choffat (1888); it was recombined as Desmoceras difficile by Douvillé (1916); it was recombined as Barremites difficilis by Vasicek (2002) and Raisossadat (2024).
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 |
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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.
†Barremites difficilis d'Orbigny 1840
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| References: Kiessling 2003, Kiessling 2004 | |||||
Age range: base of the Barremian to the top of the Late/Upper Albian or 129.40000 to 99.60000 Ma
Collections (24 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Hauterivian - Barremian | Slovakia | Barremites difficilis (2061) | |
| Early/Lower Barremian | Bulgaria | Barremites difficilis (161853) | |
| Late/Upper Barremian | Iran | Barremites difficilis (236065 236067 236068 236071 236172) | |
| Late/Upper Barremian | Slovakia | Barremites difficilis (69125) | |
| Late/Upper Barremian | Japan | Barremites difficilis (66079) | |
| Late/Upper Barremian | Romania | Barremites difficilis (169562 169563) | |
| Barremian | France (Provence) | Barremites difficilis (56058 56067 56782 56788) | |
| Barremian | Georgia | Barremites difficilis (2115) | |
| Barremian | Austria (Ternberg) | Barremites difficilis (50788 50789 50791 50792) | |
| Barremian | Italy | Barremites difficilis (50809) | |
| Barremian | Austria | Barremites difficilis (169049) | |
| Late/Upper Albian | Angola | Puzosia difficilis (210851 210852) |