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Arthraster cristatus
Taxonomy
Arthraster cristatus was named by Spencer (1907). It is not extant. Its type specimen is Holotype BNHM E 20266.
Synonymy list
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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.
†Arthraster cristatus Spencer 1907
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Diagnosis
Reference | Diagnosis | |
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W. K. Spencer 1913 | Ridges of the radialia and superomarginalia cristate. Upper surface of the ridge of all arm-ossicles possessing lipped pits formely occupied by small spines. |