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Micraster americanus

Echinoidea - Spatangoida - Micrasteridae

Taxonomy
Micraster (Plesiaster) americanus was named by Stephenson (1941).

It was recombined as Micraster americanus by Cooke (1953).

Sister species lacking formal opinion data
M. aturicus, M. crassissimus, M. regularis

Synonymy list
YearName and author
1941Micraster (Plesiaster) americanus Stephenson
1953Micraster americanus Cooke p. 38 figs. Pl 15, figs 10-13

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
—Ambulacraria
phylumEchinodermata
subphylumEleutherozoa
—Echinozoa()
classEchinoidea()
subclassEuechinoideaBronn 1860
RankNameAuthor
superorderAcroechinoidea()
—Carinacea
—Irregularia()
—Atelostomata
orderSpatangoida
suborderMicrasterina
familyMicrasteridae()
genusMicrasterAgassiz 1836
speciesamericanus(Stephenson 1941)

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.

†Micraster americanus Stephenson 1941
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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: Kiessling 2004, Aberhan 1992

Age range: base of the Late/Upper Campanian to the top of the Late/Upper Maastrichtian or 83.50000 to 66.00000 Ma

Collections (14 total)


Time interval Ma Country or state Original ID and collection number
Late/Upper Campanian83.5 - 70.6USA (Arkansas) Micraster americanus (78165 78183 78199 83037 197647 197648 197649)
Early/Lower Maastrichtian70.6 - 66.0USA (Mississippi) Micraster americanus (78125 197616)
Late/Upper Maastrichtian70.6 - 66.0USA (Texas) Micraster americanus (4517 4520 197652)
Late/Upper Maastrichtian70.6 - 66.0USA (Mississippi) Micraster americanus (78195 197606)