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Metopaster calcar
Taxonomy
Metopaster parkinsoni calcar was named by Spencer (1913). It is not extant. Its type specimen is Natural History Museum, London, lectotype BNHM E 13305.
It was recombined as Metopaster calcar by Gale (1987).
It was recombined as Metopaster calcar by Gale (1987).
Sister species lacking formal opinion data
Synonyms
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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.
†Metopaster calcar Spencer 1913
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Invalid names: Metopaster cristagalli Spencer 1913 [synonym]
Diagnosis
Reference | Diagnosis | |
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A. S. Gale 1987 | Two supero- and inferomarginals present in each side of arm. Ultimate inferomarginal elongated, triangular. Aboral protuberances present on superomarginals. Granule pits restricted to aboral swelling of superomarginals. |