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Arachnoides

Echinoidea - Clypeasteroida - Clypeasteridae

Taxonomy
Arachnoides was named by Leske (1778) [Sepkoski's age data: T Plio R]. It is extant.

It was assigned to Arachnoidinae by Durham (1955); to Arachnoididae by Durham (1966); and to Clypeasteroida by Sepkoski (2002).

Synonymy list
YearName and author
1778Arachnoides Leske p. 218
1955Arachnoides Durham p. 125 figs. Figs.2,a,e,f;5,gandh;6,c;9,g; 15,c;26,e;29,a
1966Arachnoides Durham p. U464
2002Arachnoides Sepkoski

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Deuterostomia
Ambulacraria
phylumEchinodermata
subphylumEleutherozoa
Echinozoa()
classEchinoidea()
subclassEuechinoideaBronn 1860
RankNameAuthor
superorderAcroechinoidea()
Carinacea
Irregularia()
Microstomata
Neognathostomata
orderClypeasteroida
suborderClypeasterina()
familyClypeasteridae()
subfamilyArachnoidinae
genusArachnoides

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. Arachnoides Leske 1778
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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: slow-movingo
Life habit: semi-infaunalo
Diet: detritivoreo
Vision: limitedc
Dispersal: waterp
Dispersal 2: planktonicp
Created: 2004-02-28 18:19:59
Modified: 2009-10-08 15:05:22
Source: o = order, c = class, p = phylum
References: Aberhan et al. 2004, Kiessling 2004, Aberhan 1992
Collections
No collection or age range data are available