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Ristnacrinus cirrifer

Crinoidea - Myelodactylida - Iocrinidae

Taxonomy

No taxonomic data are available

Sister species
R. marinus, R. oepiki
Sister species lacking formal opinion data
R. angulatus, R. bifidus, R. columnals

Synonymy list
No taxonomic opinions are available

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
—Ambulacraria
phylumEchinodermata
subphylumBlastozoa
classCrinoideaMiller 1821
RankNameAuthor
subclassPentacrinoideaJaekel 1918
infraclassInadunata(Wachsmuth and Springer 1897)
—Disparida(Moore and Laudon 1943)
orderMyelodactylida
familyIocrinidaeMoore and Laudon 1943
genusRistnacrinusOpik 1934
speciescirrifer

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
Measurements
No measurements are available
No ecological data are available

Age range: base of the Ashgill to the top of the Pusgillian or 449.50000 to 449.20000 Ma

Collections (5 total)


Time interval Ma Country or state Original ID and collection number
Onnian - Pusgillian453.0 - 449.2Italy (Sardinia) Ristnacrinus cirrifer (196939 196942)
Katian452.8 - 445.2Portugal (Aveiro) Ristnacrinus cirrifer (182918)
Katian452.8 - 445.2Spain (Zaragoza) Ristnacrinus cirrifer (196922)
Ashgill449.5 - 443.1Spain (Aragon) Ristnacrinus cirrifer (163399)