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Calliasterellidae
Taxonomy
Calliasterellidae was named by Schöndorf (1910). Its type is Calliasterella.
It was corrected as Calliasteridae by Schöndorf (1910); it was reranked as the subfamily Calliasterellinae by Spencer (1918) and Owen (1965).
It was assigned to Cryptozonia by Schöndorf (1910) and Schuchert (1914); to Urasterellacea by Schuchert (1915); to Arthrasteridae by Spencer (1918) and Owen (1965); to Urasterina by Kesling and Strimple (1966); to Uractinina by Spencer and Wright (1966) and Kesling (1969); to Asteroidea by Blake and Elliott (2003); and to Ambuloasteroidea by Blake (2018).
It was corrected as Calliasteridae by Schöndorf (1910); it was reranked as the subfamily Calliasterellinae by Spencer (1918) and Owen (1965).
It was assigned to Cryptozonia by Schöndorf (1910) and Schuchert (1914); to Urasterellacea by Schuchert (1915); to Arthrasteridae by Spencer (1918) and Owen (1965); to Urasterina by Kesling and Strimple (1966); to Uractinina by Spencer and Wright (1966) and Kesling (1969); to Asteroidea by Blake and Elliott (2003); and to Ambuloasteroidea by Blake (2018).
Subtaxa
Synonymy list
| Year | Name and author |
|---|---|
| 1910 | Calliasterellidae Schöndorf p. U74 |
| 1910 | Calliasteridae Schöndorf p. 251 |
| 1914 | Calliasterellidae Schuchert p. 7 |
| 1915 | Calliasterellidae Schuchert pp. 163, 190 |
| 1918 | Calliasterellinae Spencer pp. 166-168 |
| 1965 | Calliasterellinae Owen p. 567 |
| 1966 | Calliasterellidae Kesling and Strimple p. 1160 |
| 1966 | Calliasterellidae Spencer and Wright p. U74 |
| 1966 | Calliasterellinae Spencer and Wright p. U74 |
| 1969 | Calliasterellidae Kesling p. 252 |
| 2003 | Calliasterellidae Blake and Elliott p. 488 |
| 2018 | Calliasterellidae Blake p. 50 |
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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. †Calliasterellidae Schöndorf 1910
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G. †Calliasterella Schuchert 1914
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†Calliasterella americana Kesling and Strimple 1966
†Calliasterella mirus Trautschold 1879
Invalid names: Arthrasterinae Spencer 1918 [empty]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| D. B. Blake and D. R. Elliott 2003 | Primary circlet weakly enlarged; interadials, radials, nearly equisized, transversely elongate; "extraneous" or "x" ossicle not developed. Carinals in single series, ossicles not abutted; no lateral series. marginals in single series, robust, equidimensional; marginals, adambulacrals together forming rounded arm margin. Axillary absent. Ambulacrals, adambulacrals offset, two podial pore rows present. |