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Pygasteroida (disused)
Taxonomy
Pygasteroida was named by Durham and Melville (1957).
It was assigned to Diadematacea by Durham and Melville (1957) and Fell (1966); and to Echinoidea by Sepkoski (2002).
It was assigned to Diadematacea by Durham and Melville (1957) and Fell (1966); and to Echinoidea by Sepkoski (2002).
Synonymy list
| Year | Name and author |
|---|---|
| 1957 | Pygasteroida Durham and Melville p. 253 |
| 1966 | Pygasteroida Fell p. U365 |
| 2002 | Pygasteroida 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.
Or. †Pygasteroida Durham and Melville 1957
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Diagnosis
No diagnoses are available