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Orthopsida (disused)

Echinoidea - Orthopsida

Taxonomy
Orthopsina was named by Mortensen (1942).

It was reranked as the order Orthopsida by Fell and Pawson (1966) and Sepkoski (2002).

It was assigned to Echinacea by Fell and Pawson (1966); and to Echinoidea by Sepkoski (2002).

Synonymy list
YearName and author
1966Orthopsida Fell and Pawson p. U437
2002Orthopsida Sepkoski, Jr.

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
Ambulacraria
phylumEchinodermata
RankNameAuthor
subphylumEchinozoa
classEchinoidea()
subclassEuechinoideaBronn 1860
Echinacea()
orderOrthopsida()
orderOrthopsida()

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