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Hemiaster delawarensis

Echinoidea - Spatangoida - Hemiasteridae

Taxonomy
Hemiaster delawarensis was named by Clark (1916). It is a 3D body fossil. Its type locality is Marl pit east of St. Georges, which is in a Maastrichtian marine horizon in the Mount Laurel Formation of Delaware.

Synonymy list
YearName and author
1916Hemiaster delawarensis Clark
1953Hemiaster delawarensis Cooke p. 35 figs. Pl 14, figs 6-9

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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
speciesdelawarensisClark 1916

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 delawarensis Clark 1916
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Diagnosis
No diagnoses are available