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Psilotrigonia
Taxonomy
Psilotrigonia was named by Cox (1952) [Sepkoski's age data: J Plie K u Sepkoski's reference number: 93]. It is not extant. Its type is Trigonia beesleyana.
It was assigned to Trigoniidae by Cox (1952); to Trigonioida by Sepkoski (2002); and to Psilotrigoniinae by Fleming (1987), Pérez et al. (2008), Bouchet et al. (2010).
It was assigned to Trigoniidae by Cox (1952); to Trigonioida by Sepkoski (2002); and to Psilotrigoniinae by Fleming (1987), Pérez et al. (2008), Bouchet et al. (2010).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1952 | Psilotrigonia Cox |
| 1987 | Psilotrigonia Fleming p. 39 |
| 2002 | Psilotrigonia Sepkoski |
| 2008 | Psilotrigonia Pérez et al. p. 80 |
| 2010 | Psilotrigonia Bouchet et al. |
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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. †Psilotrigonia Cox 1952
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†Psilotrigonia beesleyana Lycett 1874
†Psilotrigonia vegaensis Pérez et al. 2008
†Psilotrigonia zealandica Fleming 1987
Diagnosis
No diagnoses are available