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Periaster

Echinoidea - Spatangoida - Hemiasteridae

Taxonomy
Periaster is a genus. It is not extant.

It was assigned to Hemiasteridae by Grant and Hertlein (1938); and to Spatangoida by Sepkoski (2002).

Synonymy list
YearName and author
1938Periaster Grant and Hertlein p. 123
2002Periaster Sepkoski

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
—Ambulacraria
phylumEchinodermata
subphylumEleutherozoa
—Echinozoa()
classEchinoidea()
RankNameAuthor
subclassEuechinoideaBronn 1860
superorderAcroechinoidea()
—Carinacea
—Irregularia()
—Atelostomata
orderSpatangoida
familyHemiasteridae
genusPeriaster

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. †Periaster
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: high Mg calciteo
Ontogeny: accretion, addition of partsp
Environment: marineo
Locomotion: slow-movingo
Life habit: shallow infaunalo
Diet: deposit feedero
Diet 2: detritivoreo
Vision: limitedc
Dispersal: watero
Dispersal 2: planktonico
Created: 2004-02-28 12:18:10
Modified: 2009-10-08 16:32:56
Source: o = order, c = class, p = phylum
References: Aberhan 1992, Kiessling 2004

Age range: base of the Turonian to the top of the Danian or 93.90000 to 61.60000 Ma

Collections (19 total)


Time interval Ma Country or state Original ID and collection number
Early/Lower Cenomanian99.6 - 93.5France (Poitou-Charentes) P. undulatus (73862)
Early/Lower Cenomanian99.6 - 93.5France P. elatus (59802 59810 59812 59813 59814 59815) P. undulatus (59809)
Late/Upper Cenomanian99.6 - 93.5France P. elatus (59806)
Middle Cenomanian99.6 - 93.5France P. elatus (59803 59804 59805)
Turonian93.9 - 89.8France (Landes) P. conicus (213763 213768 213769)
Turonian93.9 - 89.8France P. engolismensis (3778)
Middle Campanian - Early/Lower Maastrichtian83.5 - 66.0Peru (Amazonas) P. sp. (52839)
Danian66.0 - 61.6USA (California) P. sp. (37389 37512)