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Acrotretella
Taxonomy
Acrotretella was named by Ireland (1961). Its type is Acrotretella siluriana.
It was assigned to Torynelasmatinae by Holmer (1986), Holmer (1989); to Torynelasmatidae by Williams et al. (2000), Popov (2000); and to Acrotretida by Sepkoski (2002).
It was assigned to Torynelasmatinae by Holmer (1986), Holmer (1989); to Torynelasmatidae by Williams et al. (2000), Popov (2000); and to Acrotretida by Sepkoski (2002).
Species
A. dizeugosa, A. siluriana (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 1961 | Acrotretella Ireland |
| 1986 | Acrotretella Holmer |
| 1989 | Acrotretella Holmer |
| 2000 | Acrotretella Popov |
| 2000 | Acrotretella Williams et al. p. 124 |
| 2002 | Acrotretella Sepkoski |
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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.
G. †Acrotretella Ireland 1961
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†Acrotretella dizeugosa Valentine et al. 2006
†Acrotretella siluriana Ireland 1961
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class, uc = unranked clade | |||||
| References: Nesnidal et al. 2013, Aberhan et al. 2004 | |||||
Age range: base of the Kukruse to the top of the Alexandrian or 458.00000 to 438.10000 Ma
Collections (11 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Kukruse - Haljala | Sweden (Dalarne) | A. sp. (192035) | |
| Harju | Sweden (Östergötland) | A. sp. (191196) | |
| Harju | Sweden (Dalarne) | A. sp. (191194) | |
| Harju | Sweden (Västergötland) | A. sp. (191192) | |
| Alexandrian | USA (Oklahoma) | A. siluriana (232727 232728 232729) | |
| Llandovery | Australia (New South Wales) | A. dizeugosa (190507 190508 190511 190512) |