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Pseudarchasteridae

Asteroidea - Paxillosida - Pseudarchasteridae

Taxonomy
Pseudarchasterinae was named by Sladen (1889). It is extant. Its type is Pseudarchaster.

It was reranked as the family Pseudarchasteridae by Mah and Blake (2012) and Gale (2020).

It was assigned to Archasteridae by Sladen (1889); to Goniasteridae by Spencer and Wright (1966), Eagle (1999) and Blake and Jagt (2005); to Valvatida by Mah and Blake (2012); and to Paxillosida by Gale (2020).

Subtaxa
Pseudarchaster (type genus), Skiaster, Sucia

Synonymy list
YearName and author
1889Pseudarchasterinae Sladen p. 109
1966Pseudarchasterinae Spencer and Wright p. U59
1999Pseudarchasterinae Eagle p. 551
2005Pseudarchasterinae Blake and Jagt p. 185
2012Pseudarchasteridae Mah and Blake p. 3
2020Pseudarchasteridae Gale p. 311

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Deuterostomia
Ambulacraria
phylumEchinodermata
subphylumEleutherozoa
Asterozoa()
RankNameAuthor
classAsteroidea
subclassAmbuloasteroidea
infraclassNeoasteroidea()
superorderValvatacea
orderPaxillosida
familyPseudarchasteridae()
familyPseudarchasteridae()

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.

Fm. Pseudarchasteridae Sladen 1889
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G. Pseudarchaster Sladen 1889
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Pseudarchaster discus Fischer 1911
G. †Skiaster Blake and Jagt 2005
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Skiaster vikingr Blake and Jagt 2005
G. †Sucia Blake 1973
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Sucia suavis Blake 1973
Diagnosis
ReferenceDiagnosis
M.K. Eagle 1999Abactinal plates paxilliform or tabulate; superambulacra in rudimentary form; pedicellariae, if present, spinniform, fasciolar, or incipiently bivalved.
A.S. Gale 2020Paxillosid asteroids which possess a marginal frame carrying shallow intermarginal fascioles; tube feet with a flattened termination; oral ossicle pairs with a single, proximally directed spine in each interradius.