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Taxonomy
Sphaerophthalmella was named by Kobayashi (1955) [Sepkoski's age data: O l]. It is not extant.
It was assigned to Olenidae by Jell and Adrain (2002); and to Ptychopariida by Sepkoski (2002).
It was assigned to Olenidae by Jell and Adrain (2002); and to Ptychopariida by Sepkoski (2002).
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1955 | Boeckaspis Henningsmoen |
| 1955 | Sphaerophthalmella Kobayashi |
| 2002 | Sphaerophthalmella Jell and Adrain p. 447 |
| 2002 | Boeckaspis Sepkoski |
| 2002 | Sphaerophthalmella 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. †Sphaerophthalmella Kobayashi 1955
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Invalid names: Boeckaspis Henningsmoen 1955 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, c = class | |||||
| References: Hendy 2009, Aberhan et al. 2004 | |||||
Age range: base of the Cressagian to the top of the Arenig or 486.40000 to 468.00000 Ma
Collections (6 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Niuchehean - Tremadoc | Norway (Naersnes) | Boeckaspis hirsuta (156947 156955) | |
| Tremadocian | United Kingdom | Boeckaspis hirsuta (229517) | |
| Cressagian | United Kingdom (England) | Boeckaspis sp. (3712) | |
| Tremadoc | Norway | Boeckaspis hirsuta (3105) | |
| Arenig | Bolivia (Avilés) | Boeckaspis sp. (9104) |