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Arnioceras semilaeve
Taxonomy
Ammonites semilaevis was named by Hauer (1853).
It was recombined as Arietites semilaevis by Geyer (1886); it was recombined as Arnioceras semilaeve by Fucini (1902) and Bremer (1965).
It was recombined as Arietites semilaevis by Geyer (1886); it was recombined as Arnioceras semilaeve by Fucini (1902) and Bremer (1965).
Sister species lacking formal opinion data
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1853 | Ammonites semilaevis Hauer |
| 1856 | Ammonites multicostatus Hauer |
| 1886 | Arietites semilaevis Geyer |
| 1902 | Arnioceras semilaeve Fucini |
| 1965 | Arnioceras semilaeve Bremer |
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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.
†Arnioceras semilaeve Hauer 1853
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Invalid names: Ammonites multicostatus Hauer 1856 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Kiessling 2003 | |||||
Age range: base of the Late/Upper Sinemurian to the top of the Early/Lower Sinemurian or 196.50000 to 189.60000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Sinemurian | United Kingdom (Gloucestershire) | Ammonites multicostatus (204156) | |
| Late/Upper Sinemurian - Early/Lower Pliensbachian | Turkey | Arnioceras semilaeve (218660 218661) |