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Neoasteroidea

Asteroidea -

Synonyms
Synonymy list
YearName and author
1848Astropecten hastingiae Forbes p. 478
1849Astropecten hastingiae Forbes figs. pl. 2 fig. 1
1854Astropecten hastingiae Morris p. 72
1857Crenaster hastingiae Pictet p. 271
1862Astropecten hastingiae Dujardin and Hupé p. 429
1863Astropecten hastingiae Wright pp. 113-114 figs. pl. 6 fig. 3-4
1875Astropecten hastingiae Phillips p. 237
1891Astropecten hastingiae Woods p. 35
1892Astropecten hastingiae Fox-Strangeways p. 33
1929Astropecten hastingti Valette p. 416
1955Archastropecten hastingiae Hess p. 30
1987Neoasteroidea Gale p. 123
1988Pentasteria (Archastropecten) hastingiae Kutscher p. 64 figs. pl. 2 fig. 6-8
1993Neoasteroidea Donovan et al. p. 129
2003Neoasteroidea Blake and Hagdorn p. 34
2007Neoasteroidea Villier et al. p. 415
2008Neoasteroidea Breton and Néraudeau p. 323
2011Neoasteroidea Gale p. 52
2017Neoasteroidea Blake et al. p. 324

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
Ambulacraria
phylumEchinodermata
RankNameAuthor
subphylumAsterozoa
classAsteroidea
subclassAmbuloasteroidea
infraclassNeoasteroidea()
infraclassNeoasteroidea()

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 and H. Hagdorn 2003Axillary or axillary series absent. More or less extensive actinal series differentiated ventral to the marginal series. Actinals in basal taxa more or less irregular in form and arrangement but with the longest series adjacent to the marginal series. Adambulacrals overlapping in the distal direction. Adambulacrals little wider than ambulacral articular flanges; ambulacrals typically larger than adambulacrals. Longitudinal ambulacral connective surfaces inclined proximally such that the proximal flange of each ambulacral more or less clearly overlaps the distal side of the more proximal ossicle, thus ossicular form is not bilateral. In basal taxa, the adradial dorsal profile of the ambulacral is rounded in a knee-like outline. Accessories becoming differentiated but basal expression uncertain.