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Lacertasterias

Asteroidea - Hemizonida

Taxonomy
Lacertasterias was named by Blake and Guensburg (1989) [Sepkoski's age data: C Tour-l]. It is not extant. Its type is Lacertasterias elegans.

It was assigned to Hemizonida by Blake and Guensburg (1989); and to Pustulosida by Sepkoski (2002).

Synonymy list
YearName and author
1989Lacertasterias Blake and Guensburg p. 336
2002Lacertasterias Sepkoski, Jr.

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
Ambulacraria
RankNameAuthor
phylumEchinodermata
subphylumAsterozoa
classAsteroidea
orderHemizonida
genusLacertasterias

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 T. E. Guensburg 1989Multiarmed asteroid; abactinal sturdy; marginals closely arranged, interdigitate, thickened, with smaller granular ossicles distributed among larger; ambulacrals and adambulacrals stout with large podial basins; adambulacrals tansversely rounded, wide distally on arm but narrowed proximally, approximately first eight abutted across interbrachium to form adoral carina; orals large, smooth, keel-like, with large torus bearing prominent spines fitted between oral pair.