| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Dactylioceras (Dactylioceras) attenuatus
Taxonomy
Ammonites attenuatus was named by Simpson (1855).
It was recombined as Dactylioceras (Dactylioceras) attenuatus by Guex (1972).
It was recombined as Dactylioceras (Dactylioceras) attenuatus by Guex (1972).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1855 | Ammonites attenuatus Simpson |
| 1972 | Dactylioceras (Dactylioceras) attenuatus Guex figs. Pl 8, fig 7 |
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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.
†Dactylioceras (Dactylioceras) attenuatus Simpson 1855
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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 Middle Toarcian to the top of the Late/Upper Toarcian or 182.00000 to 175.60000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Bifrons | France | Microdactylites attenuatus (170470) | |
| Middle Toarcian - Late/Upper Toarcian | Morocco (Taza-Al Hoceima-Taounate) | Dactylioceras attenuatus (234054) |