Figure 10. Borelis hottingeri n.sp. (A-M), Rhabdorites sp. (N-O, R-S), Hexagonocyclina cristensis (Vaughan, 1924) (P), and Ranikothalia soldadensis (Vaughan & Cole, 1941) (Q, T) from the Paleocene of Campeche (SE Mexico). Scale bar = 0.6 mm for pictures A-N, P-S; 0.3 mm for picture O. A, oblique-centred section. B, D, oblique sections close to the axial plane. C, K-M, tangential sections. E, G, Q, oblique sections close to the equatorial plane. F, equatorial section. H, subequatorial section. I, J, R-S, axial sections. P, oblique section. N, tangential (left) and equatorial section (right). Note that the shells are partially dissolved. O, transverse, slightly oblique section. Note the absence of pillars in the central part of the chamber, typical from the genus Rhabdorites. A, 95-Me-46-02 (Paratype). B, 95-Me-46-16. C, 95-Me-46-17. D, 95-Me-46-18. E, 95-Me-46-19. F, 95-Me-46-03 (Paratype). G, 95-Me-46-30. H, 95-Me-46-04 (Paratype). I, 95-Me-46-01 (Holotype). J, 95-Me-46-20. K, 95-Me-46-05 (Paratype). L, 95-Me-46-21. M, 95-Me-47-33. N, 95-Me-46-22-23. O, 95-Me-46-24. P, 95-Me-46-25. Q, 95-Me-46-26. R, 95-Me-46-27. S, 95-Me-46-28. T, 95-Me-46-29.

Abbreviations: bl: basal layer; f: foramen; pr: proloculus; prp: preseptal space; s: septum; sl: septulum. See Hottinger, 2006, for definition of terms.