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Ischnacanthida
Taxonomy
Ischnacanthida was named by Berg (1940). It is not extant.
It was assigned to Acanthodii by Denison (1979); and to Acanthodii by Janvier and Riglos (1986) and Sepkoski (2002).
It was assigned to Acanthodii by Denison (1979); and to Acanthodii by Janvier and Riglos (1986) and Sepkoski (2002).
Subtaxa
Synonymy list
| Year | Name and author |
|---|---|
| 1940 | Ischnacanthida Berg |
| 1979 | Ischnacanthida Denison |
| 1986 | Ischnacanthida Janvier and Riglos |
| 2002 | Ischnacanthida 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.
Diagnosis
No diagnoses are available