Basic info Taxonomic history Classification Included Taxa
Morphology Ecology and taphonomy External Literature Search Age range and collections

Alphacrinidae

Crinoidea - Alphacrinidae

Taxonomy
Alphacrinidae was named by Guensburg (2010).

It was assigned to Disparida by Guensburg (2010).

Subtaxa
Alphacrinus

Synonymy list
YearName and author
2010Alphacrinidae Guensburg p. 1213

Is something missing? Join the Paleobiology Database and enter the data

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

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.

Fm. †Alphacrinidae Guensburg 2010
show all | hide all
G. †Alphacrinus Guensburg 2010
hide
†Alphacrinus mansfieldi Guensburg 2010
Diagnosis
ReferenceDiagnosis
T. E. Guensburg 2010Disparids expressing interbrachial and posterior (CD) cup plate fields.
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: 2004-02-28 16:34:13
Modified: 2009-10-09 13:33:22
Source: subc = subclass, c = class, p = phylum
References: Aberhan et al. 2004, Kiessling 2004, Aberhan 1992

Age range: Stairsian or 483.40000 to 481.70000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Stairsian483.4 - 481.7USA (Utah) Alphacrinus mansfieldi (201819)