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Trimerella
Taxonomy
Trimerella was named by Billings (1862) [Sepkoski's age data: S Ldov-l S Ludl-l Sepkoski's reference number: 1,1066]. It is not extant. It is the type genus of Trimerellidae.
It was assigned to Trimerellidae by Jaanuson (1966) and Williams et al. (2000); and to Trimerellida by Sepkoski (2002).
It was assigned to Trimerellidae by Jaanuson (1966) and Williams et al. (2000); and to Trimerellida by Sepkoski (2002).
Species lacking formal opinion data
Synonyms
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Synonymy list
Year | Name and author |
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1862 | Trimerella Billings |
1966 | Trimerella Jaanuson |
1980 | Machaerocolella Li and Han |
1984 | Prosoponella Li |
2000 | Trimerella Williams et al. p. 185 |
2002 | Machaerocolella Sepkoski |
2002 | Prosoponella Sepkoski |
2002 | Trimerella 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. †Trimerella Billings 1862
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Invalid names: Machaerocolella Li and Han 1980 [synonym], Prosoponella Li 1984 [synonym]
Diagnosis
No diagnoses are available