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Petalocrinus bifidus

Crinoidea - Cyathocrinida - Petalocrinidae

Taxonomy
Petalocrinus bifidus was named by Fearnhead and Donovan (2006). It is not extant. Its type locality is Near Littlehope, Woolhope Inlier, Woolhope Inlier, which is in a Rhuddanian intrashelf/intraplatform reef limestone in the Haugh Wood Formation of the United Kingdom.

Sister species lacking formal opinion data
P. chenxiacunensis, P. inferior, P. longus, P. mirabilis, P. visbycensis

Synonymy list
YearName and author
2006Petalocrinus bifidus Fearnhead and Donovan

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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
orderCyathocrinida(Bather 1899)
superfamilyGasterocomaceaRoemer 1854
familyPetalocrinidaeWeller and Davidson 1896
genusPetalocrinusWeller and Davidson 1896
speciesbifidus

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.

†Petalocrinus bifidus Fearnhead and Donovan 2006
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Diagnosis
No diagnoses are available
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: Hendy et al. 2009, Kiessling 2004, Aberhan 1992

Age range: Rhuddanian or 443.10000 to 440.50000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Rhuddanian443.1 - 440.5United Kingdom (England) Petalocrinus bifidus (type locality: 195255)