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Sievertsella

Crinoidea - Comatulida - Comatulidae

Taxonomy
Sievertsella was named by Radwańska (2003). Its type is Palaeocomaster seranensis.

It was assigned to Comasteridae by Hess and Messing (2011); and to Comatuladae by Souza-Lima and deCastro Manso (2017).

Synonyms
Synonymy list
YearName and author
1987Sievertsia Radwanska
2002Sievertsia Sepkoski
2003Sievertsella Radwańska
2011Sievertsella Hess and Messing p. 95
2017Sievertsella Souza-Lima and deCastro Manso

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Deuterostomia
Ambulacraria
phylumEchinodermata
subphylumBlastozoa
classCrinoideaMiller 1821
RankNameAuthor
subclassPentacrinoideaJaekel 1918
infraclassInadunata(Wachsmuth and Springer 1897)
Cladida(Moore and Laudon 1943)
Eucladida
infraorderArticulata(Miller 1821)
orderComatulidaClark 1908
familyComatulidae(d'Orbigny 1852)
genusSievertsellaRadwańska 2003

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. †Sievertsella Radwańska 2003
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Sievertsella polonica Radwańska 1987
Invalid names: Sievertsia Radwanska 1987 [replaced]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: high Mg calciteo
Ontogeny: accretion, addition of partsp
Environment: marineo
Locomotion: facultatively mobileo
Attached: yeso
Life habit: intermediate-level epifaunalo
Diet: suspension feedero
Vision: blindc
Dispersal: waterp
Dispersal 2: planktonicp
Created: 2004-02-28 16:07:27
Modified: 2009-10-08 14:29:07
Source: o = order, c = class, p = phylum
References: Aberhan et al. 2004, Aberhan 1992, Kiessling 2004

Age range

Maximum range based only on fossils: Early/Lower Miocene or 23.03000 to 15.97000 Ma
Minimum age of oldest fossil (stem group age): 15.97 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Early/Lower Miocene23.03 - 15.97Brazil (Para) S. polonica (112579)