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Schizaster americana

Echinoidea - Spatangoida - Schizasteridae

Taxonomy
Schizaster americana was named by Clark and Twitchell (1915) [attributed to Clark only]. It is a 3D body fossil. Its type locality is Within town limits of Brandon, on State Highway 18, which is in an Oligocene marine limestone in the Glendon Formation of Mississippi.

It was corrected as Schizaster americanus by Cooke (1942).

Sister species lacking formal opinion data
S. ameghinoi, S. batheri, S. gaudryi, S. major, S. symmetricus

Synonymy list
YearName and author
1915Schizaster americana Clark and Twitchell p. 176 figs. Plate LXXXII, Figs. 2a-d
1942Schizaster americanus Cooke p. 40

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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()
genusSchizasterAgassiz 1835
speciesamericana

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.

†Schizaster americana 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: Aberhan 1992, Kiessling 2004

Age range: Early/Lower Oligocene or 33.90000 to 28.40000 Ma

Collections (11 total)


Time interval Ma Country or state Original ID and collection number
Early/Lower Oligocene33.9 - 28.4USA (Mississippi) Schizaster americana (type locality: 143407)
Early/Lower Oligocene33.9 - 28.4USA (Florida) Schizaster americanus (35013)
Rupelian33.9 - 28.1USA (Mississippi) Schizaster americanus (99716 101186 101192 101193 101195 101196)
Rupelian33.9 - 28.1USA (Florida) Schizaster americanus (35015)
Rupelian33.9 - 28.1USA (Alabama) Schizaster americanus (101113)
Oligocene33.9 - 23.03USA (Georgia) Schizaster americanus (101121)