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Hystrixasterias

Asteroidea - Asteriidae

Taxonomy
Hystrixasterias was named by Blake (1990). It is not extant. Its type is Hystrixasterias hettangiurnus.

It was assigned to Asteriidae by Blake (1990); and to Forcipulatida by Sepkoski (2002).

Synonymy list
YearName and author
1990Hystrixasterias Blake p. 121 figs. 3-4
2002Hystriyasterias Sepkoski, Jr.

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
Ambulacraria
phylumEchinodermata
subphylumAsterozoa
classAsteroidea
RankNameAuthor
subclassAmbuloasteroidea
infraclassNeoasteroidea()
superorderSurculifera
Tripedicellaria
Forcipulatida()
familyAsteriidae
genusHystrixasterias

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.

Diagnosis
ReferenceDiagnosis
D. B. Blake 1990Asteriid with body wall ossicular series consisting of carinals bordered on each side by one row of small laterals and two of larger laterals; then two marginal rows and three actinal rows on disk, two on arms. Ossicles of various series transitional in morphology. Abactinals arranged in regular transverse and longitudinal rows. Ambulacra moderetly compressed, podial pores quadriserial; first 3 adambulacral pairs forming adoral carina, adambulacrals with transverse series of four prominent spines; large uncrossed clam-shaped pedicellariae present on dorsal surface only.