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Metopaster tercensis
Taxonomy
Metopaster tercensis was named by Villier (2001). It is not extant. Its type specimen is Museum of Tercis-les-Bains, Holotype AST V 99-1, paratypes: AST V 99-2, AST V 16. Its type locality is Sample V 99.0, Tercis-les-Bains, which is in a Campanian offshore shelf limestone in France.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 2001 | Metopaster tercensis Villier pp. 590-595 figs. figs. 5, 6, 7.1-6 |
| 2001 | Metopaster tercensis Villier and Odin figs. pl. 1, fig. 6-8 |
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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 tercensis Villier 2001
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| L. Villier 2001 | Enlarged distal superomarginals trapezoidal in dorsal view, the distal extremity turn abradially; 3 to 6 intermarginal plates for articulation with inferomarginals. The most proximal of these intermarginal faces being much larger than the others. External face with an abactinal rounded and elongated tumidity. Adradial face coarsely ovate with an abactinal rim nearly straight. Ornament with a smooth raised central area well-demarcated from a narrow depressed margin. Superomarginal plates as wide as long, with lateral face nearly parallel. Superomarginals articulate each with four abactinal plates that are tabular, polygonal with an ornament of granule-pits and occasionally a reduced smooth raised central area. External face of the superomarginals has a rounded hump. Profile of the lateral faces varies from rectangular, angular to triangular rand regularly convex. Lateral faces concave with a thickened rim along the external edge. |