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Hemidiadema

Echinoidea - Camarodonta - Glyphocyphidae

Taxonomy
Hemidiadema is a genus. It is not extant.

It was assigned to Glyphocyphidae by Fell and Pawson (1966); and to Phymosomatoida by Sepkoski (2002).

Species lacking formal opinion data
H. rugosum, H. wehrlii
Entered
by J. Sepkoski on 2003-01-23

Synonymy list
YearName and author
1966Hemidiadema Fell and Pawson p. U417
2002Hemidiadema Sepkoski

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
—Ambulacraria
phylumEchinodermata
subphylumEleutherozoa
—Echinozoa()
RankNameAuthor
classEchinoidea()
subclassEuechinoideaBronn 1860
—Echinacea()
orderCamarodonta
infraorderTemnopleuridea
familyGlyphocyphidae()
genusHemidiadema

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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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: base of the Aptian to the top of the Early/Lower Maastrichtian or 121.40000 to 66.00000 Ma

Collections (2 total)


Time interval Ma Country or state Original ID and collection number
Aptian121.4 - 113.2Morocco (Western High Atlas) H. rugosum (2070)
Early/Lower Maastrichtian72.2 - 66.0Germany (Mecklenburg-Vorpommern) H. wehrlii (32022)