Plate 10. 1, 2, 4-7. Markalius ellipticus Grün. (1,4, 5)^TR Same specimen, Sample 149-901A-5R-1, 31 cm.1. Distal view, FSU-F80, X8000. (4, 5) XP, FSU-FO51-D5 and Ph, FSU-FO51-D6. (2) Proximal view, Sample 149-901A-5R-1, 31 cm; FSU-F9, X8000. (6, 7) XP, Sample 149-901A-5R-1, 31 cm; FSU-FO44-D35 and Ph, FSU-FO44-D36. 3, 8-12. Thoracosphaera sp. 1. (3, 10, 12)^TR. Same specimen, Sample 149-901A-5R-1, 31 cm. (3) Side view, FSU-F72, X6000. (12) Top view, FSU-F73, X6000. (10) XP, FSU-FO51-D28. (8, 9) XP, Sample 149-901A-5R-1, 31 cm; FSU-FO46-D19 and Ph, FSU-FO46-D20. (11) XP, Sample 149-901A-3R-1, 33 cm; FSU-FO47-D28.13, 14. Chiastozygus leptostaums Cooper; XP, Sample 149-901A-5R-1, 31 cm; FSU-FO45-D1, and Ph, FSU-FO45-D2. 15, 16. Vagalapilla sp. 1; XP, Sample 149-901A-5R-1, 31 cm; FSU-FO44-D11, and Ph, FSU-FO44-D12. 17, 18. Vagalapilla quadriarculla (Noël) Roth; XP, Sample 149-901A-5R-1, 74 cm; FSU-FO49-D14, and Ph, FSU-FO49-D15. 19, 21^TR. Vagalapilla sp. 3; same specimen, Sample 149-901A-5R-1, 31 cm. (21) Distal view, FSU-F75, X8000. (19) XP, FSU-FO51-D27. 20. Vagalapilla stradneri (Rood, Hay, and Barnard) Thierstein; XP, Sample 149-901A-5R-1, 31 cm; FSU-FO44-D29.