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

Isocrinus

Crinoidea - Isocrinida - Isocrinidae

Synonyms
Synonymy list
YearName and author
1836Isocrinites Meyer in Agassiz p. 57
1836Isocrinus von Meyer p. 57
1915Isocrinus Clark and Twitchell p. 21
1953Isocrinus Moore and Vokes p. 122
1961Isocrinus Rasmussen p. 87
1990Isocrinus Oji p. 425
1999Isocrinus Jagt p. 72
2005Isocrinites Donovan et al. p. 97
2005Isocrinus Donovan et al. p. 97
2010Isocrinus Hess and Gale p. 431
2010Isocrinus Jäger p. 736
2011Isocrinus Hess and Messing p. 50
2012Isocrinus Hess p. 219

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

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
infraorderArticulata(Miller 1821)
orderIsocrinidaSieverts-Doreck 1952
suborderIsocrininaSieverts-Doreck 1952
familyIsocrinidaeGislén 1924
subfamilyIsocrininaeGislen 1924
genusIsocrinusvon Meyer 1836

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. †Isocrinus von Meyer 1836
show all | hide all
Subg. †Isocrinus (Chladocrinus) Agassiz 1836
+
Subg. †Isocrinus (Isocrinus) von Meyer 1836
+
Isocrinus amblyscalaris Thurmann 1861
Isocrinus annulatus Roemer 1836
+
Invalid names: Pentacrinus alternatus d'Orbigny 1850 [synonym]
Isocrinus arduennensis Valette 1926
Isocrinus arzierensis Loriol 1879
Isocrinus bleytonensis Jäger 2010
Isocrinus brotzeni Rasmussen 1961
Isocrinus californicus Clark and Twitchell 1915
Isocrinus campanularis Nielsen 1913
Isocrinus cenomanensis d'Orbigny 1850
+
Invalid names: Isocrinus neuvillensis Valette 1917 [synonym]
Isocrinus dentatogranulatus Wollemann 1907
Isocrinus diegonensis Collignon 1931
Isocrinus divergens Nielsen 1913
Isocrinus doliolum Valette 1917
Isocrinus dumortieri Oppel 1865
Isocrinus echinatus Rasmussen 1961
Isocrinus florifer Eichwald 1868
Isocrinus gevreyi Loriol 1904
Isocrinus gocevi Sieverts-Doreck 1951
Isocrinus granosus Valette 1917
+
Invalid names: Balanocrinus epensensis Valette 1917 [synonym], Isocrinus forbesi Biese 1930 [synonym], Isocrinus hureae Valette 1917 [synonym]
Isocrinus knighti Springer 1909
Isocrinus lanceolatus Roemer 1840
Isocrinus legeri Repelin 1899
+
Invalid names: Isocrinus askerensis Valette 1926 [synonym]
Isocrinus lissajouxi Loriol 1836
Isocrinus longus Nielsen 1913
Isocrinus mallevalensis Loriol 1904
Isocrinus minutus Valette 1917
Isocrinus nehalemensis Moore and Vokes 1953
Isocrinus neocomiensis Desor 1845
Isocrinus nicoleti Desor 1845
Isocrinus nodulosus Roemer 1840
+
Invalid names: Isocrinus affinis Valette 1917 [synonym], Isocrinus sanctipaterni Valette 1917 [synonym], Pentacrinus lamberti Valette 1917 [synonym]
Isocrinus perlatus Quenstedt 1852
Isocrinus peyroulensis Loriol 1904
+
Invalid names: Isocrinus demolyi Valette 1928 [synonym]
Isocrinus propinquus Münster 1834
+
Invalid names: Pentacrinus braunii Münster 1841 [synonym]
Isocrinus psilonoti Quenstedt 1858
Isocrinus sublaevigatus d'Orbigny 1850
Isocrinus thiessingi Loriol 1879
Isocrinus zeltbergensis Wollemann 1902
Invalid names: Isocrinites Meyer in Agassiz 1836 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: high Mg calcitec
Ontogeny: accretion, addition of partsp
Environment: marinep
Locomotion: stationaryf
Attached: yesf
Life habit: upper-level epifaunalf
Diet: suspension feederf
Vision: blindc
Dispersal: waterp
Dispersal 2: planktonicp
Created: 2014-09-12 15:03:18
Modified: 2014-09-12 15:03:18
Source: f = family, c = class, p = phylum
References: Aberhan 1992, Donovan 1994, Kiessling 2004

Age range

Maximum range based only on fossils: base of the Spathian to the top of the Early/Lower Miocene or 251.30000 to 15.97000 Ma
Minimum age of oldest fossil (stem group age): 247.2 Ma

Collections (215 total)

Oldest occurrences

Time interval Ma Country or state Original ID and collection number
Spathian251.3 - 247.2USA (Utah) I. sp. (44449)
Pelsonian - Illyrian247.2 - 242.0Hungary I. sp. (81050 81051)
Middle Triassic247.2 - 237.0USA (Nevada) I. sp. (203310)
Ladinian242.0 - 237.0Iran I. rollieri (97874)
Longobardian242.0 - 235.0Canada (British Columbia) I. sp. (44367 44368 44369 44370)
Longobardian242.0 - 235.0Italy (Trentino) Pentacrinus propinquus (44953)
Carnian237.0 - 228.0Italy (Venezia) I. candelabrum, I. apetalus, I. sassostriensis, I. tyrolensis (56706)
Carnian237.0 - 228.0USA (nevada) I. sp. (32793)
Carnian237.0 - 228.0Italy (South Tyrol) Pentacrinus propinquus (205147 205149)
Carnian237.0 - 228.0China (Xizang) I. candelabrum (61262)
Carnian237.0 - 228.0USA (Nevada) I. sp. (32520 32666 32670)
Carnian237.0 - 228.0Austria (Tyrol) Pentacrinus propinquus (202331)
Carnian237.0 - 228.0Germany Pentacrinus propinquus (206011 206012)
Late/Upper Triassic237.0 - 201.3USA (Alaska) I. gravinse (112239)
Late/Upper Triassic237.0 - 201.3USA (California) I. californicus (203308 203309)
Julian235.0 - 232.0Italy I. candelabrum, I. sassostriensis, I. sp. A (69661) I. sassostriensis, I. candelabrum, I. sp. A (34692) I. tyrolensis (69651 69664 69665 69668 69672 69675 202422) Pentacrinus propinquus, Pentacrinus braunii (137429)
Julian235.0 - 232.0Italy (Belluno) I. sp. (207478)
Tuvalian232.0 - 221.5Austria (Tyrol) Pentacrinus propinquus (203207)
Tuvalian232.0 - 221.5Canada (British Columbia) I. sp. (67003)
Tuvalian232.0 - 221.5USA (California) I. californicus (33324 144078)