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Morphology Ecology and taphonomy   Age range and collections

Sinoeocrinus

Eocrinoidea - Gogiida - Eocrinidae

Synonyms
Synonymy list
YearName and author
1994Curtoeocrinus Zhao et al.
2002Curteocrinus Sepkoski, Jr.
2002Paragogia Sepkoski, Jr.
2002Sinoeocrinus Sepkoski, Jr.
2006Sinoeocrinus Parsley and Zhao p. 1065

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
Ambulacraria
phylumEchinodermata
RankNameAuthor
subphylumBlastozoaSprinkle 1973
classEocrinoideaJaekel 1918
orderGogiidaBroadhead 1982
familyEocrinidaeJaekel 1918
genusSinoeocrinus

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
R. L. Parsley and Y.-L. Zhao 2006Gogiid with at least three series of near equidimensional,
essentially hexagonal plates developed directly under apical ambulacrum and two series of elongated transitional plates between them and first holdfast plates in small juveniles (TH < 3 mm). Larger juveniles and mature specimens irregularly plated because of subsequent plate intercalation. Thecal plates comprising basal part of theca irregular and similar to plates of holdfast except that they have sutural pores. Ambulacral area restricted to upper thecal surface and arranged in 2-1-2 pattern except in early juveniles where pattern is 2-2. Depending on ontogenetic stage, straight brachioles number 4, 5, 10, or 15. Cover plates unusually tall. Holdfast variable in length and composed of numerous bossed platelets. Attachment disk slightly expanded and composed of several layers of small platelets.