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Parasciadiocrinus

Crinoidea - Dendrocrinida - Anobasicrinidae

Synonymy list
YearName and author
2013Parasciadiocrinus Mirantsev and Arendt p. 472

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
—Ambulacraria
phylumEchinodermata
subphylumBlastozoa
classCrinoideaMiller 1821
subclassPentacrinoideaJaekel 1918
RankNameAuthor
infraclassInadunata(Wachsmuth and Springer 1897)
—Cladida(Moore and Laudon 1943)
—Eucladida
superorderCyathoformes
orderDendrocrinida
superfamilyAgassizocrinoidea(Miller 1888)
familyAnobasicrinidaeStrimple 1961
genusParasciadiocrinus

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.

G. †Parasciadiocrinus Mirantsev and Arendt 2013
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†Parasciadiocrinus lancetospinosus Mirantsev and Arendt 2013
Diagnosis
ReferenceDiagnosis
G. V. Mirantsev and Yu. A. Arendt 2013Cup low, saucershaped. Basals small, either not touching one another, or contacting at one point (Fig. 1). In adult specimens, proximal tips of cup plates of all circlets included in basal concavity. Anal sac mushroomshaped, strongly tapering proximally, with large anal opening, and wide and flattened on top; composed of numerous polygonal plates rimmed by laterally compressed marginal lobelike spines. Arms branching isotomously. One primibrachial in each ray (less commonly, ray A may contain two primibrachials). Secundibrachials ranging from three to five. Further branching strongly varying even within the same branch. Brachials hyperpinnulate. Stem wide, heteromorphic, circular in cross section.
Measurements
No measurements are available
Composition: high Mg calcitec
Ontogeny: accretion, addition of partsp
Environment: marinep
Locomotion: stationarysubc
Attached: yessubc
Life habit: intermediate-level epifaunalsubc
Diet: suspension feedersubc
Vision: blindc
Dispersal: waterp
Dispersal 2: planktonicp
Created: 2009-10-09 11:50:31
Modified: 2009-10-09 13:50:31
Source: subc = subclass, c = class, p = phylum
References: Aberhan 1992, Hendy et al. 2009, Kiessling 2004

Age range: Khamovnikian or 305.80000 to 304.80000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Khamovnikian305.8 - 304.8Russian Federation (Central) P. lancetospinosus (153886)