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Paraster armiger

Echinoidea - Spatangoida - Schizasteridae

Taxonomy
Schizaster armiger was named by Clark and Twitchell (1915) [attributed to Clark only]. Its type specimen is USNM 141104, a test, and it is a 3D body fossil. Its type locality is Melvin, southeast of, which is in a Priabonian marginal marine mixed carbonate-siliciclastic in the Yazoo Formation of Alabama.

It was recombined as Paraster armiger by Cooke (1959).

Sister species lacking formal opinion data
P. hyperocus, P. nummuliticus, P. saipanicus, Schizaster legraini

Synonymy list
YearName and author
1915Schizaster armiger Clark and Twitchell p. 152 figs. pl. 70, figs. 1a-d
1917Schizaster armiger Jackson p. 498
1942Schizaster armiger Cooke p. 39
1959Paraster armiger Cooke p. 71

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
—Ambulacraria
phylumEchinodermata
subphylumEleutherozoa
—Echinozoa()
classEchinoidea()
subclassEuechinoideaBronn 1860
RankNameAuthor
superorderAcroechinoidea()
—Carinacea
—Irregularia()
—Atelostomata
orderSpatangoida
suborderPaleopneustina
familySchizasteridae()
genusParasterAgassiz 1835
speciesarmiger()

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.

†Paraster armiger Clark and Twitchell 1915
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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 Bartonian to the top of the Rupelian or 41.03000 to 27.30000 Ma

Collections (13 total)


Time interval Ma Country or state Original ID and collection number
Bartonian41.03 - 37.71USA (Louisiana) Schizaster armiger (3534)
Bartonian41.03 - 37.71USA (Georgia) Schizaster armiger (3528)
Bartonian41.03 - 37.71USA (Mississippi) Schizaster armiger (3532)
Bartonian41.03 - 37.71USA (Alabama) Schizaster armiger (3505 3506 3518)
Late/Upper Eocene37.71 - 33.9Panama Schizaster armiger (42488 42698)
Priabonian37.71 - 33.9USA (Alabama) Schizaster armiger (3540 3548 3549 28983)
Rupelian33.9 - 27.3USA (Alabama) Paraster armiger (155971)