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Alexenia
Taxonomy
Alexenia is a genus. It is not extant.
It was assigned to Spyridiophorini by Williams et al. (2000); and to Strophomenida by Sepkoski (2002).
It was assigned to Spyridiophorini by Williams et al. (2000); and to Strophomenida by Sepkoski (2002).
Synonymy list
| Year | Name and author |
|---|---|
| 2000 | Alexenia Williams et al. p. 475 |
| 2002 | Alexenia 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. †Alexenia
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†Alexenia alta Ustritsky 1963
†Alexenia gratiodentalis Grabau 1934
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Invalid names: Productus occidentalis Schellwien 1892 [replaced]
†Alexenia mucronata Liao 1979
†Alexenia occidentalis Cooper 1957
†Alexenia protexta Jin and Ye 1979
†Alexenia subquadrata Cooper 1957
Diagnosis
No diagnoses are available