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Trigonosemus
Taxonomy
Trigonosemus is a genus. It is not extant. Its type is Trigonosemus elegans. It is the type genus of Trigonoseminae.
It was assigned to Terebratulida by Sepkoski (2002); and to Trigonoseminae by Williams et al. (2006).
It was assigned to Terebratulida by Sepkoski (2002); and to Trigonoseminae by Williams et al. (2006).
Species
T. elegans (type species), T. palissii
Synonymy list
| Year | Name and author |
|---|---|
| 2002 | Trigonosemus Sepkoski |
| 2006 | Trigonosemus Williams et al. p. 2215 |
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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. †Trigonosemus
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†Trigonosemus elegans Koenig 1825
†Trigonosemus palissii Woodward 1854
Diagnosis
No diagnoses are available