| Basic info | Taxonomic history | Classification | Relationships |
| Morphology | Ecology and taphonomy | Age range and collections |
Leptagonia
Strophomenata - Strophomenida - Rafinesquinidae
Taxonomy
Leptagonia was named as a genus. It is not extant.
It was reranked as Leptaena (Leptagonia) by M'Coy (1851).
It was assigned to Leptaena by M'Coy (1851); to Leptaeninae by Williams et al. (2000); and to Strophomenida by Sepkoski (2002).
It was reranked as Leptaena (Leptagonia) by M'Coy (1851).
It was assigned to Leptaena by M'Coy (1851); to Leptaeninae by Williams et al. (2000); and to Strophomenida by Sepkoski (2002).
Species
Species lacking formal opinion data
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1851 | Leptaena (Leptagonia) M'Coy |
| 2000 | Leptagonia Williams et al. p. 246 |
| 2002 | Adiaphragma Sepkoski, Jr. |
| 2002 | Leptagonia Sepkoski, Jr. |
| 2002 | Semileptagonia Sepkoski, Jr. |
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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.
Diagnosis
No diagnoses are available