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Isocrinida

Crinoidea - Isocrinida

Synonymy list
YearName and author
1952Isocrinida Sieverts-Doreck
1985Isocrinida Jäger p. 93
1994Isocrinida Stilwell et al. p. 138
1998Isocrinida Ausich p. 17
2002Isocrinida Sepkoski, Jr.
2017Isocrinida Wright et al. p. 842

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
Ambulacraria
phylumEchinodermata
subphylumCrinozoaMatsumoto 1929
classCrinoideaMiller 1821
RankNameAuthor
subclassPentacrinoideaJaekel 1918
infraclassInadunata(Wachsmuth and Springer 1897)
Cladida(Moore and Laudon 1943)
Eucladida
infraorderArticulata(Miller 1821)
orderIsocrinidaSieverts-Doreck 1952
orderIsocrinidaSieverts-Doreck 1952

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
Composition: high Mg calcitec
Ontogeny: accretion, addition of partsp
Environment: marinep
Locomotion: stationaryo
Attached: yessubc
Life habit: epifaunalo
Diet: suspension feedero
Vision: blindc
Dispersal: waterp
Dispersal 2: planktonicp
Comments: some genera of the order, e.g. Isocrinus and Seirocrinus are pseudoplanktonic (passively mobile)o
Created: 2004-02-28 17:08:50
Modified: 2004-02-28 19:08:50
Source: o = order, subc = subclass, c = class, p = phylum
References: Kiessling 2004, Aberhan et al. 2004, Aberhan 1992, Hendy et al. 2009

Age range

Maximum range based only on fossils: base of the Kungurian to the top of the Calabrian or 279.30000 to 0.78100 Ma
Minimum age of oldest fossil (stem group age): 272.3 Ma

Collections (394 total)

Oldest occurrences

Time interval Ma Country or state Original ID and collection number
Kungurian279.3 - 272.3Australia (Western Australia) Archaeoisocrinus occiduaustralis (120603)
Spathian251.3 - 247.2USA (Utah) Isocrinus sp. (44449)
Anisian247.2 - 242.0New Zealand Laevigatocrinus balmacaanensis (60863 60990) Pentacrinites carolinensis, Laevigatocrinus balmacaanensis (60991)
Pelsonian - Illyrian247.2 - 242.0China (Guizhou) Balanocrinus sp. (31611 31613 31616 31617 31618 31627 31628 31632) Balanocrinus sp., Tollmannicrinus saklibelensis (31619 31631) Balanocrinus sp., Tyrolecrinus tyrolensis (31620 31621 31622 31623 31624 31625 31626 31629)
Pelsonian - Illyrian247.2 - 242.0Hungary Isocrinus sp. (81050 81051)
Middle Triassic247.2 - 237.0USA (Nevada) Isocrinus sp. (203310)
Ladinian242.0 - 237.0New Zealand Tollmannicrinus saklibelensis (60993 60994 60997)
Ladinian242.0 - 237.0Canada (British Columbia) Isocrinus sp. (44367 44368 44369 44370)
Ladinian242.0 - 237.0Iran Balanocrinus sp., Isocrinus rollieri (97874)
Longobardian242.0 - 235.0Italy (Trentino) Pentacrinus propinquus (44953)
Carnian237.0 - 228.0USA (Nevada) Isocrinus sp. (32520 32666 32670)
Carnian237.0 - 228.0Italy (Venezia) Isocrinus candelabrum, Isocrinus apetalus, Isocrinus sassostriensis, Isocrinus tyrolensis (56706)
Carnian237.0 - 228.0USA (nevada) Isocrinus sp. (32793)
Carnian237.0 - 228.0Slovenia Laevigatocrinus subcrenatus, Tyrolecrinus hercuniae, Tyrolecrinus sceptrum, Tyrolecrinus tyrolensis, Tyrolecrinus pecae (85175) Laevigatocrinus subcrenatus, Tyrolecrinus hercuniae, Tyrolecrinus tyrolensis, Tyrolecrinus scipio (85173) Laevigatocrinus subcrenatus, Tyrolecrinus tyrolensis, Tyrolecrinus sp. (85177)
Carnian237.0 - 228.0China (Xizang) Isocrinus candelabrum (61262)
Carnian237.0 - 228.0China (Sichuan) Tyrolecrinus sp., Tyrolecrinus tyrolensis (192218)
Carnian237.0 - 228.0Italy Tyrolecrinus candelabrum, Tyrolecrinus tyrolensis (164191)
Late/Upper Triassic237.0 - 201.3USA (California) Isocrinus californicus (203308 203309)
Late/Upper Triassic237.0 - 201.3USA (Alaska) Isocrinus gravinse (112239)
Julian235.0 - 232.0Italy Isocrinus candelabrum, Isocrinus sassostriensis, Isocrinus sp. A (69661) Isocrinus sassostriensis, Isocrinus candelabrum, Isocrinus sp. A (34692) Isocrinus tyrolensis (69651 69664 69665 69668 69672 69675 202422) Pentacrinus propinquus, Pentacrinus braunii (137429) Tulipacrinus sp. (50983 139398 139422 139425) Tulipacrinus tulipa (139397) Tulipacrinus tulipa, Tulipacrinus latus (139399) Tyrolecrinus tyrolensis (163815)