. Bulletin of the British Museum (Natural History), Geology. E. labyrinthica E. whiteleyi E. elegantula E. mackinneyi E. pseudolamellosa E. lamellosa. E. subhexagona E. viskovae E. hexagona E. flabellata E. triangularis S. vieilbanci Fig. 14 Outlines of autozooidal aperture shapes in species of Elea and Semielea. Individual apertures were traced from SEM micrographs and scaled using the mean apertural length determined for the species. Species are arranged according to apertural length. Elea lamellosa (d'Orbigny, 1850) Figs 17-28 1850 Bidiastopora lamellosa d'Orbigny: 266. 1851 Bidiastopora la


. Bulletin of the British Museum (Natural History), Geology. E. labyrinthica E. whiteleyi E. elegantula E. mackinneyi E. pseudolamellosa E. lamellosa. E. subhexagona E. viskovae E. hexagona E. flabellata E. triangularis S. vieilbanci Fig. 14 Outlines of autozooidal aperture shapes in species of Elea and Semielea. Individual apertures were traced from SEM micrographs and scaled using the mean apertural length determined for the species. Species are arranged according to apertural length. Elea lamellosa (d'Orbigny, 1850) Figs 17-28 1850 Bidiastopora lamellosa d'Orbigny: 266. 1851 Bidiastopora lamellosa d'Orbigny; d'Orbigny, pi. 625, figs 11-15. 1853 Elea lamellosa (d'Orbigny); d'Orbigny: 632. 1853 Semielea plana d'Orbigny: 638, pi. 738, figs 12-14. 71853 Reptelea pulchella d'Orbigny: 642, pi. 738, figs 16-17. 1853 Semimultelea irregularis d'Orbigny: 652, pi. 741, figs 6-8. 1853 Semimultelea gradata d'Orbigny: 653 (partim), ?non pi. 741, figs 9-13. 1890 Semielea plana d'Orbigny; Pergens: 393. 1890 Elea lamellosa (d'Orbigny); Pergens: 398. 1899 Reptelea pulchella d'Orbigny; Gregory: 292, non fig. 31. 1899 Elea lamellosa (d'Orbigny); Gregory: 299. non 1899 Semimultelea irregularis d'Orbigny; Gregory: 296, fig. 32. 1912 Meliceritites plana (d'Orbigny); Levinsen: 43, pi. 5, figs 11-12. 1912 Meliceritites lamellosa (d'Orbigny); Levinsen: 45, pi. 3, figs 1-9. 1985a Elea lamellosa (d'Orbigny); Taylor, fig. 2F and G. 1985/3 Semielea plana d'Orbigny; Voigt: 631, pi. 3, figs 16-17. Material. Type: no type specimens have been designated; the d'Orbigny Collection, MNHN includes 8 glass tubes, all registered as 8191, each of which contains specimens of Elea lamellosa ( 17). Some of these are from the two localities given in the original species description ( Tours and Saintes); a lectotype could be selected from among these topotypic syntypes but the identity of the species is not in doubt. Other material: MNHN d'Orbigny Colin 8191 (Voigt pho- tocard 8310), Senonian [Sa


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