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Glyptomena kaskolica
Taxonomy
Glyptomena kaskolica was named by Nikitin et al. (2003). Its type specimen is NMW 98.30G.12 (ventral internal mould) and is a 3D body fossil. Its type locality is Locality 550a - Kaskol Bed, East of Bolshoi Kaskol lake., which is in a Katian carbonate limestone in the Tauken Formation of Kazakhstan.
Synonymy list
Year | Name and author |
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2003 | Glyptomena kaskolica Nikitin et al. pp. 44 - 46 figs. 3I–M, 5H |
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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.
†Glyptomena kaskolica Nikitin et al. 2003
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Diagnosis
Reference | Diagnosis | |
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I. F. Nikitin et al. 2003 | Shell strongly concavoconvex, about 85% as long as wide; ventral valve strongly and evenly convex, about 40% as thick as long with low apsacline interarea; dorsal valve evenly concave, rarely slightly geniculated in large specimens; radial ornament inequally parvicostellate with 3 to 4 parvicostellae between accentuated ribs and 10 to 12 ribs per 3 mm along the anterior margin of adult specimens; weak, oblique rugellae developed along the posterior margin. |