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Taxonomy
Cytherea lunulifera was named by Wilckens (1911). It is a 3D body fossil. It is the type species of Cockburnia.
It was recombined as Cockburnia lunulifera by Zinsmeister (1984).
It was recombined as Cockburnia lunulifera by Zinsmeister (1984).
Synonymy list
Year | Name and author |
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1911 | Cytherea lunulifera Wilckens p. 17 figs. pl. 1, fig. 13a, b |
1984 | Cockburnia lunulifera Zinsmeister p. 1522 |
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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.
†Cockburnia lunulifera Wilckens 1911
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Diagnosis
Reference | Diagnosis | |
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W. J. Zinsmeister 1984 | Shell moderately small, subovate, inflated; umbones subcentral; dorsal margins with moderate slope; ventral margin broadly rounded; lunule large, not impressed, inscribed with faint incised line; escutcheon well developed; surface smooth, covered with crowded growth
increments; hinge with 3 widely diverging cardinals; right valve-3b moderately thick; 1 triangular; 3a long, narrow, subparallel to lunule; pallial sinus triangular, ascending; inner margin smooth. |