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Tvaerenella
Taxonomy
Tvaerenella was named by Jaanusson (1957) [Sepkoski's age data: O Llvi-l O Ashg-l Sepkoski's reference number: 78,855]. It is the type genus of Tvaerenellidae.
It was assigned to Tvaerenellidae by Benson et al. (1961); to Palaeocopida by Sepkoski (2002); and to Tvaerenellinae by Schallreuter and Hinz-Schallreuter (2011).
It was assigned to Tvaerenellidae by Benson et al. (1961); to Palaeocopida by Sepkoski (2002); and to Tvaerenellinae by Schallreuter and Hinz-Schallreuter (2011).
Synonymy list
| Year | Name and author |
|---|---|
| 1957 | Tvaerenella Jaanusson |
| 1961 | Tvaerenella Benson et al. p. Q163 |
| 2002 | Tvaerenella Sepkoski |
| 2011 | Tvaerenella Schallreuter and Hinz-Schallreuter p. 67 |
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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. †Tvaerenella Jaanusson 1957
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Diagnosis
No diagnoses are available