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Fayoumaster

Asteroidea - Valvatida - Goniasteridae

Taxonomy
Fayoumaster was named by Roman and Strougo (1987) [Sepkoski's age data: T Eo-u T Mi-m]. It is not extant. Its type is Fayoumaster pharaonum.

It was assigned to Goniasteridae by Roman and Strougo (1987); and to Valvatida by Sepkoski (2002).

Synonymy list
YearName and author
1987Fayoumaster Roman and Strougo p. 36
2002Fayoumaster Sepkoski, Jr.

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
Ambulacraria
phylumEchinodermata
subphylumAsterozoa
RankNameAuthor
classAsteroidea
subclassAmbuloasteroidea
infraclassNeoasteroidea()
superorderValvatacea
orderValvatida
familyGoniasteridae
genusFayoumaster

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
J. Roman and A. Strougo 1987Goniasteridae with rather long, acute arms. Well-defined, large madreporite. Five primary interradial abactinals differentiated bearing tubercles. Large interradial abactinals organized in to rows, encircling the primary interradial. Other abactinals polygonal, tessellated. Carinal row differentiated in the arm with few lateral abactinals. Marginals wide in the disc tend to be longer, quadrate in the arm. Superomarginals granular. Inferomarginals with a single robust spine. Adambulacrals with one or two subambulacral spines.