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Orthopsida (disused)
Taxonomy
Orthopsina was named by Mortensen (1942).
It was reranked as the order Orthopsida by Fell and Pawson (1966), Smith (1995) and Sepkoski (2002).
It was assigned to Echinacea by Fell and Pawson (1966); to Acroechinoidea by Smith (1995); and to Echinoidea by Sepkoski (2002).
It was reranked as the order Orthopsida by Fell and Pawson (1966), Smith (1995) and Sepkoski (2002).
It was assigned to Echinacea by Fell and Pawson (1966); to Acroechinoidea by Smith (1995); and to Echinoidea by Sepkoski (2002).
Synonymy list
| Year | Name and author |
|---|---|
| 1966 | Orthopsida Fell and Pawson p. U437 |
| 1995 | Orthopsida Smith p. 136 |
| 2002 | Orthopsida 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. †Orthopsida Mortensen 1942
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Diagnosis
No diagnoses are available