PBDB Taxon

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Morphology	Ecology and taphonomy	External Literature Search	Age range and collections

Chladocrinus subangularis

Crinoidea - Isocrinida - Isocrinidae

Taxonomy

Pentacrinites subangularis was named by Miller (1821).

It was recombined as Chladocrinus subangularis by Wang (1997); it was recombined as Seirocrinus subangularis by Jäger (1985), Hess and Messing (2011).

Sister species lacking formal opinion data

C. angulatus, C. robustus, C. tenellus, C. tuberculatus, Isocrinus hanaii

Synonyms

Pentacrinites fasciculosus was named by von Schlotheim (1813).

It was synonymized subjectively with Seirocrinus subangularis by Hess and Messing (2011).
Pentacrinus hiemeri was named by Koenig (1825).

It was synonymized subjectively with Seirocrinus subangularis by Hess and Messing (2011).
Extracrinus lepidotus was named by Austin and Austin (1847).

It was synonymized subjectively with Seirocrinus subangularis by Hess and Messing (2011).
Pentacrinites briaroides was named by Quenstedt (1852).

It was synonymized subjectively with Seirocrinus subangularis by Hess and Messing (2011).
Pentacrinites colligatus was named by Quenstedt (1852).

It was synonymized subjectively with Seirocrinus subangularis by Hess and Messing (2011).

Synonymy list

Year	Name and author
1813	Pentacrinites fasciculosus von Schlotheim p. 56
1821	Pentacrinites subangularis Miller p. 59 figs. Pl 1; pl 2, figs 1-5
1825	Pentacrinus hiemeri Koenig p. 2
1847	Extracrinus lepidotus Austin and Austin
1852	Pentacrinites briaroides Quenstedt p. 607
1852	Pentacrinites colligatus Quenstedt p. 608
1985	Seirocrinus subangularis Jäger p. 96 figs. Pl 3, figs 8-11
1997	Chladocrinus subangularis Wang p. 101 figs. Pl 1, figs 7-15
2011	Seirocrinus subangularis Hess and Messing p. 46

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Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Deuterostomia
—	Ambulacraria
phylum	Echinodermata
subphylum	Blastozoa
class	Crinoidea	Miller 1821
subclass	Pentacrinoidea	Jaekel 1918
infraclass	Inadunata	(Wachsmuth and Springer 1897)

Rank	Name	Author
—	Cladida	(Moore and Laudon 1943)
—	Eucladida
subclass	Articulata	(Miller 1821)
order	Isocrinida	Sieverts-Doreck 1952
suborder	Isocrinina	Sieverts-Doreck 1952
family	Isocrinidae	Gislén 1924
subfamily	Isocrininae	Gislen 1924
genus	Chladocrinus	Agassiz 1836
species	subangularis	(Miller 1821)

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.

†Chladocrinus subangularis Miller 1821

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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: Donovan 1994, Aberhan 1992, Kiessling 2004

Age range: Early/Lower Sinemurian or 199.50000 to 192.90000 Ma

Collections (2 total)

Time interval	Ma	Country or state	Original ID and collection number
Early/Lower Sinemurian	199.5 - 192.9	Hong Kong	Chladocrinus subangularis (47101 59270)