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Hemiaster arcolensis

Echinoidea - Spatangoida - Hemiasteridae

Taxonomy
Hemiaster arcolensis was named by Cooke (1953). Its type specimen is USNM 108397 and is a 3D body fossil. Its type locality is Hayneville, Lowndes, which is in a Campanian marine horizon in the Mooreville Chalk Formation of Alabama.

Synonymy list
YearName and author
1953Hemiaster arcolensis Cooke p. 32 figs. Pl 12, figs 12-16

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

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.

†Hemiaster arcolensis Cooke 1953
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Diagnosis
No diagnoses are available