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Lepyriactinidae

Asteroidea - Hemizonida - Lepyriactinidae

Taxonomy
Lepyriactinidae was named by Spencer and Wright (1966). It is not extant. Its type is Lepyriactis.

It was assigned to Eugnathina by Spencer and Wright (1966); and to Hemizonida by Blake (1989).

Synonymy list
YearName and author
1966Lepyriactinidae Spencer and Wright p. U65
1989Lepyriactinidae Blake p. 213

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

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
W. K. Spencer and C.W. Wright 1966Aboral skeleton reduced, not preserved in fossils; adambulacrals very narrow, mouth angle plates much elongated