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Iocrinus

Crinoidea - Myelodactylida - Iocrinidae

Taxonomy
Iocrinus was named by Hall (1866) [Sepkoski's age data: O Aren-l O Ashg-m Sepkoski's reference number: 1066]. It is not extant.

It was assigned to Disparida by Sepkoski (2002); and to Iocrinidae by Ramsbottom (1961), Ausich (1998) and Ausich et al. (2018).

Synonymy list
YearName and author
1866Iocrinus Hall
1961Iocrinus Ramsbottom
1998Iocrinus Ausich p. 27
2002Iocrinus Sepkoski
2018Iocrinus Ausich et al.

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
—Ambulacraria
phylumEchinodermata
subphylumBlastozoa
RankNameAuthor
classCrinoideaMiller 1821
subclassPentacrinoideaJaekel 1918
infraclassInadunata(Wachsmuth and Springer 1897)
superorderDisparida(Moore and Laudon 1943)
orderMyelodactylida
familyIocrinidaeMoore and Laudon 1943
genusIocrinusHall 1866

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. †Iocrinus Hall 1866
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†Iocrinus llandegleyi Botting 2003
†Iocrinus subcrassus Meek and Worthen 1865
†Iocrinus trentonensis Walcott 1883
†Iocrinus whitteryi Ramsbottom 1961
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: high Mg calcitec
Ontogeny: accretion, addition of partsp
Environment: marinep
Locomotion: stationaryg
Attached: yesg
Life habit: intermediate-level epifaunalg
Diet: suspension feederg
Vision: blindc
Dispersal: waterp
Dispersal 2: planktonicp
Comments: LIFE HISTORY: Approximate length of 15-20 cm according to Brett et al (2008), therefore intermediate level epifaunal.g
Created: 2009-10-09 11:24:26
Modified: 2009-10-09 13:24:26
Source: g = genus, c = class, p = phylum
References: Hendy et al. 2009, Aberhan 1992, Aberhan et al. 2004, Kiessling 2004

Age range: base of the Llanvirn to the top of the Richmondian or 468.00000 to 445.50000 Ma

Collections (69 total)


Time interval Ma Country or state Original ID and collection number
Middle Ordovician470.0 - 458.4USA (New York) I. sp. (333 334 335 430)
Llanvirn468.0 - 458.4United Kingdom I. llandegleyi, I. whitteryi (191644)
Mohawkian457.3 - 451.0USA (New York) I. subcrassus (104582 104593 104596 104597 104598 104600 104603 104605 104610 104623) I. subcrassus, I. trentonensis (104606) I. trentonensis (104590 104599 104627)
Chatfieldian453.8 - 451.0USA (New York) I. sp. (433) I. subcrassus, I. trentonensis (432 76089 76090)
Katian453.0 - 445.2Canada (Ontario) I. trentonensis (192275 192277)
Edenian451.0 - 450.2Canada (Ontario) I. subcrassus (173337)
Edenian451.0 - 450.2USA (Ohio) I. sp. (383 384 385 386)
Edenian451.0 - 450.2USA (Kentucky) I. sp. (72644 72678)
Edenian451.0 - 450.2USA (Pennsylvania) I. subcrassus (34895)
Maysvillian450.2 - 449.6USA (Ohio) I. sp. (387 388 391 5394 72593 72595 72597 72820 72905 72987 72996)
Maysvillian450.2 - 449.6USA (Illinois, Iowa) I. sp. (23522 23524)
Maysvillian450.2 - 449.6USA (Kentucky) I. sp. (73034)
Maysvillian - Ashgill450.2 - 443.7USA (Ohio) I. sp. (389 390)
Richmondian449.6 - 445.5USA (Indiana) I. sp. (72429 72437 73091 73100 73101)
Richmondian449.6 - 445.5USA (Iowa) I. sp. (13200)
Richmondian449.6 - 445.5USA (Ohio) I. sp. (367 368 72566 72608 72806 72809 72811 72880 72882 72927 72930 72963 73035)
Richmondian - Ashgill449.6 - 443.7USA (Ohio) I. sp. (392)