PBDB Taxon

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Corystusidae

Echinoidea - Corystusidae

Taxonomy

Corystusidae was named by International Commission on Zoological Nomenclature (2009).

It was assigned to Echinoidea by International Commission on Zoological Nomenclature (2009).

Subtaxa

Cardabia, Corystus, Huttonechinus

Synonyms

Corystidae was named by Foster and Philip (1978). It is extant.

It was replaced with Corystusidae by Boyko (2008), International Commission on Zoological Nomenclature (2009).

It was assigned to Holasteroida by Foster and Philip (1978).

Synonymy list

Year	Name and author
1978	Corystidae Foster and Philip
2009	Corystusidae International Commission on Zoological Nomenclature

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Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Deuterostomia
—	Ambulacraria
phylum	Echinodermata

Rank	Name	Author
subphylum	Eleutherozoa
—	Echinozoa	()
class	Echinoidea	()
family	Corystusidae
family	Corystusidae

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.

Fm. †Corystusidae International Commission on Zoological Nomenclature 2009

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G. Corystus Pomel 1883

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†Corystus dyasteroides Duncan 1877

Invalid names: Corystidae Foster and Philip 1978 [replaced]

Diagnosis

No diagnoses are available

Measurements

No measurements are available

Composition:

high Mg calcitec

Ontogeny:

accretion, addition of partsp

Environment:

marinep

Locomotion:

actively mobilec

Life habit:

epifaunalc

Diet:

grazerc

Diet 2:

deposit feederc

Vision:

limitedc

Dispersal:

waterp

Dispersal 2:

planktonicp

Created:

2004-02-28 12:05:24

Modified:

2010-02-12 04:00:29

Source: c = class, p = phylum

References: Aberhan 1992, Kiessling 2004

Age range

Maximum range based only on fossils: base of the Late/Upper Santonian to the top of the Rupelian or 85.70000 to 27.30000 Ma
Minimum age of oldest fossil (stem group age): 72.2 Ma

Collections (5 total)

Time interval	Ma	Country or state	Original ID and collection number
Late/Upper Santonian - Middle Campanian	85.7 - 72.2	Antarctica	Huttonechinus antarctica (39619)
Middle Paleocene - Late/Upper Paleocene	61.66 - 56.0	Australia (Western Australia)	Cardabia bullarensis (204581)
Priabonian	37.71 - 33.9	Australia (Victoria)	Corystus dysasteroides (204586)
Whaingaroan	34.6 - 27.3	New Zealand (South Island)	Huttonechinus spatangiformis (204587)
Rupelian	33.9 - 27.3	Australia (South Australia)	Corystus dysasteroides (45823)