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Fandasteridae
Taxonomy
Fandasteridae was named by Blake and Elliott (2003). It is not extant. Its type is Fandasterias.
It was assigned to Asteroidea by Blake and Elliott (2003); and to Hadrosida by Blake (2018).
It was assigned to Asteroidea by Blake and Elliott (2003); and to Hadrosida by Blake (2018).
Subtaxa
Fandasterias (type genus)
Synonymy list
Year | Name and author |
---|---|
2003 | Fandasteridae Blake and Elliott p. 486 |
2018 | Fandasteridae Blake p. 45 |
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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. †Fandasteridae Blake and Elliott 2003
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Diagnosis
Reference | Diagnosis | |
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D. B. Blake and D. R. Elliott 2003 | Primary circlet robust, enlarged relative to adjacent ossicles; interradials, radials nearly equisized, transversely elongate; "extraneous" or "x" ossicles not recognized. Carinals in double series, series discimilar; inferomarginals forming angular arm margin, adambulacrals inset, not part of arm margin. Axillaries absent; ambulacrals, adambulacrals paired. Podial pores absent in type. |
Measurements
No measurements are available
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Source: c = class, p = phylum | |||||
References: Aberhan 1992, Aberhan et al. 2004 |