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Gymnocidaris

Echinoidea - Hemicidaridae

Taxonomy
Gymnocidaris was named by Agassiz (1838) [Sepkoski's age data: J Bajo J Bath-u Sepkoski's reference number: 577,956].

It was assigned to Hemicidaridae by Fell and Pawson (1966) and Addi et al. (1998); and to Hemicidaroida by Sepkoski (2002).

Synonymy list
YearName and author
1838Gymnocidaris Agassiz p. 3
1966Gymnocidaris Fell and Pawson p. U382
1998Gymnocidaris Addi et al.
2002Gymnocidaris Sepkoski

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
—Ambulacraria
phylumEchinodermata
subphylumEleutherozoa
RankNameAuthor
—Echinozoa()
classEchinoidea()
subclassEuechinoideaBronn 1860
superorderAcroechinoidea()
—Carinacea
familyHemicidaridae
genusGymnocidaris

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. †Gymnocidaris Agassiz 1838
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†Gymnocidaris cossmanni Lambert 1900
†Gymnocidaris pustulosa Agassiz 1846
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: Kiessling 2004, Aberhan 1992

Age range: base of the Bajocian to the top of the Kimmeridgian or 170.30000 to 152.10000 Ma

Collections (12 total)


Time interval Ma Country or state Original ID and collection number
Late/Upper Bajocian - Bathonian171.6 - 166.1Morocco G. pustulosa (68166)
Bajocian170.3 - 168.3Morocco G. pustulosa (68165)
Bajocian - Bathonian170.3 - 166.1Morocco G. pustulosa (204643)
Late/Upper Bathonian167.7 - 164.7France G. pustulosa (37510)
Middle Oxfordian161.2 - 155.7France G. sp. (11085)
Kimmeridgian157.3 - 152.1Poland (Malogoszcz) G. agassizi (157213)
Kimmeridgian157.3 - 152.1Poland (Goluchow) G. agassizi (157218)
Kimmeridgian157.3 - 152.1Poland (Korytnica) G. agassizi (157217)
Kimmeridgian157.3 - 152.1Poland (Sulejow) G. agassizi (157209)
Kimmeridgian157.3 - 152.1Poland (Lesnica) G. agassizi (157211)
Late/Upper Kimmeridgian155.7 - 150.8Germany (Baden-Württemberg) G. sp. (154138)
Late/Upper Kimmeridgian155.7 - 150.8Germany G. agassizii (211294)