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Porachistrum

Holothuroidea - Apodida

Taxonomy
Achistrum (Porachistrum) was named by Beckmann (1965). It is not extant. It is considered to be a form taxon.

It was considered an invalid subgroup of Achistrum by Gilliland (1992); it was reranked as Porachistrum by Sepkoski (2002).

It was assigned to Achistrum by Beckmann (1965); and to Apodida by Sepkoski (2002).

Synonymy list
YearName and author
1965Achistrum (Porachistrum) Beckmann p. 204
2002Porachistrum Sepkoski, Jr.

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
Ambulacraria
RankNameAuthor
phylumEchinodermata
classHolothuroidea()
orderApodida
genusPorachistrum()

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