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Xenocrinus

Crinoidea - Monobathrida - Xenocrinidae

Taxonomy
Xenocrinus was named by Miller (1881) [Sepkoski's age data: O Ashg-m O Ashg-u]. It is not extant. Its type is Xenocrinus penicillus. It is the type genus of Xenocrinidae.

It was assigned to Monobathrida by Sepkoski (2002); and to Xenocrinidae by Ausich and Copper (2010), Ausich and Cournoyer (2019).

Synonymy list
YearName and author
1881Xenocrinus Miller
2002Xenocrinus Sepkoski
2010Xenocrinus Ausich and Copper p. 23
2019Xenocrinus Ausich and Cournoyer

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
—Ambulacraria
phylumEchinodermata
subphylumBlastozoa
RankNameAuthor
classCrinoideaMiller 1821
subclassCamerataWachsmuth and Springer 1885
infraclassEucamerataCole 2017
orderMonobathridaMoore and Laudon 1943
familyXenocrinidaeMiller 1890
genusXenocrinusMiller 1881

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. †Xenocrinus Miller 1881
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†Xenocrinus baeri Meek 1872
†Xenocrinus breviformis Brower 1974
†Xenocrinus multiramus Ramsbottom 1961
†Xenocrinus penicillus Miller 1881
†Xenocrinus rubus Ausich and Copper 2010
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: high Mg calcitec
Ontogeny: accretion, addition of partsp
Environment: marinep
Locomotion: stationaryo
Attached: yeso
Life habit: upper-level epifaunalo
Diet: suspension feedero
Vision: blindc
Dispersal: waterp
Dispersal 2: planktonicp
Created: 2004-02-28 17:13:32
Modified: 2009-10-09 13:32:16
Source: o = order, c = class, p = phylum
References: Kiessling 2004, Aberhan et al. 2004, Aberhan 1992

Age range: base of the Rawtheyan to the top of the Telychian or 448.80000 to 432.90000 Ma

Collections (36 total)


Time interval Ma Country or state Original ID and collection number
Katian452.8 - 445.2Canada (Quebec) X. sp. (202369)
Richmondian449.6 - 445.5USA (Indiana) X. sp. (377 72466)
Richmondian449.6 - 445.5USA (Ohio) X. penicillus (201760) X. sp. (72614 72615 72617 72622 72804 72811 72876 72879)
Richmondian449.6 - 445.5USA (Kentucky) X. sp. (73058 73060 73061 73063 73064 73116 73118 207421)
Richmondian449.6 - 445.5USA (Illinois, Iowa) X. sp. (23534 23546)
Richmondian - Ashgill449.6 - 443.1USA (Ohio) X. sp. (393)
Rawtheyan448.8 - 445.2United Kingdom (Scotland) X. breviformis, X. multiramus (165175)
Gamachian445.5 - 443.1Canada (Québec) X. rubus (24338)
Hirnantian445.2 - 443.1Canada (Québec) X. rubus (24443 184846)
Hirnantian445.2 - 443.1Canada (Quebec) X. rubus (80614 202374 202375 202377 202379) X. sp. (202378)
Rhuddanian443.1 - 440.5Canada (Quebec) X. rubus (202385) X. sp. (202383)
Aeronian - Telychian440.5 - 432.9Canada (Quebec) X. rubus (202386)