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Hardouinia micrococcus

Echinoidea - Cassiduloida

Taxonomy
Cassidulus micrococcus was named by Gabb (1860).

It was recombined as Hardouinia micrococcus by Cooke (1953).

Synonyms
Synonymy list
YearName and author
1860Cassidulus micrococcus Gabb
1891Cassidulus porrectus Clark
1915Cassidulus micrococcus Clark and Twitchell p. 76
1915Cassidulus porrectus Clark and Twitchell p. 78
1953Hardouinia micrococcus Cooke p. 21 figs. Pl 6, figs 1-10; pl 7, fig 12

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Deuterostomia
Ambulacraria
phylumEchinodermata
subphylumEleutherozoa
Echinozoa()
classEchinoidea()
RankNameAuthor
subclassEuechinoideaBronn 1860
superorderAcroechinoidea()
Carinacea
Irregularia()
Microstomata
Neognathostomata
orderCassiduloida
genusHardouinia()
speciesmicrococcus(Gabb 1860)

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.

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Invalid names: Cassidulus porrectus Clark 1891 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: high Mg calciteo
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 17:48:53
Modified: 2009-10-08 14:57:31
Source: o = order, c = class, p = phylum
References: Aberhan et al. 2004, Aberhan 1992, Kiessling 2004

Age range: Early/Lower Maastrichtian or 70.60000 to 66.00000 Ma

Collections (6 total)


Time interval Ma Country or state Original ID and collection number
Early/Lower Maastrichtian70.6 - 66.0USA (Georgia) Hardouinia micrococcus (78131 197172)
Early/Lower Maastrichtian70.6 - 66.0USA (Alabama) Cassidulus porrectus (78130) Hardouinia micrococcus (197148 197149 197171)