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Marjumicystis

Eocrinoidea -

Taxonomy
Marjumicystis was named by Ubaghs and Robison (1988) [Sepkoski's age data: Cm uMid-m Sepkoski's reference number: 539]. Its type is Marjumicystis mettae.

It was assigned to Eocrinoidea by Ubaghs and Robison (1988) and Sepkoski (2002).

Synonymy list
YearName and author
1988Marjumicystis Ubaghs and Robison pp. 19 - 22
2002Marjumicystis Sepkoski, Jr.

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
Ambulacraria
RankNameAuthor
phylumEchinodermata
subphylumBlastozoaSprinkle 1973
classEocrinoideaJaekel 1918
genusMarjumicystis

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
ReferenceDiagnosis
G. Ubaghs and R. A. Robison 1988Eocrinoids with irregular multiplated
theca, lacking sutural pores or epispires.
Holdfast extremely reduced or possibly without attachment appendage. Ambulacral system confined to oral surface, consisting of an elongate mouth and ambulacra leading to probably five groups of generally two slender, unbranched, biserial brachioles. Anus, hydroporc, and gonopore unknown.