Figure 2.1 - 2.19. 1. Hippocrepina depressa Vasicek, 1947. 1. Side view. Barremian-Aptian. Silesian Unit. MK 260, Black shales, Verovice Beds. Wilkowisko, east of Myslenice, Poland. Geroch Collection, Jagiellonian University, Krakow, Poland. Scale Bar = 225 microns. 2-3. Kalamopsis grzybowskii (Dylàzanka), 1923. 2. Side view. Late Cretaceous. Wyglówka borehole 5: 384.6-319.6 m. Variegated marls, Subsilesian Unit, Poland. Geroch Collection, Jagiellonian University, Krakow, Poland. Scale Bar = 446 microns. 3. Side view. Late Cretaceous. Wyglówka borehole 5: 384.6-319.6 m. Variegated marls, Subsilesian Unit, Poland. Geroch Collection, Jagiellonian University, Krakow, Poland. Scale Bar = 353 microns. 4-5. Karreriella bradyi Cushman, 1911. 4. Side view. Holotype. Recent. Albatross Station D2806, Galapagos Islands (1379 fm). Smithsonian Collection. USNM 26307. Scale Bar = 137 microns. 5. Side view. Barra Fan, Seep Study. R.W. Jones’ Collection. Scale Bar = 165 microns. 6-7. Karrerulina conversa (Grybowski), 1901. 6. Side view. Recent Challenger Station 346, South Atlantic Ocean (2350 fm). Natural History Museum, London. NHM ZF1416. Scale Bar - 184 microns. 7. Side view. Late Cretaceous. Specimen from the Geroch Collection at the Smithsonian Institution. Scale Bar - 210 mircrons. 8-10. Paratrochammina challengeri Brönnimann and Whittaker, 1988. 8. Spiral view. Recent. Challenger Station 323, South Atlantic Ocean (1900 fm). Natural History Museum, London. NHM ZF1538. 9. Side view of specimen 8. 10. Umbilical view of specimen 8. Scale Bar = 291 microns. 11-13. Siphotextularia concava (Karrer), 1868. 11. Side view. Recent. Challenger Station 308, West of Patagonia, East Pacific Ocean (175 fm). Natural History Museum, London. NHM ZF2443. 12. Apertural view of specimen 11. 13. End view of specimen 11. Scale Bar = 191 microns. 14-16. Spiroplectammina spectabilis Grzybowski, 1898 emend. Kaminski, 1984. 14. Macrospheric specimen. Side view. Karas Potok, Poland. Geroch Collection, Jagiellonian University, Krakow, Poland. Scale Bar = 444 microns. 15. Macrospheric specimen. Side view. Karas Potok, Poland. Geroch Collection, Jagiellonian University, Krakow, Poland. Scale Bar = 435 microns. 16. Microspheric specimen. Side view. Karas Potok, Poland. Geroch Collection, Jagiellonian University, Krakow, Poland. Scale Bar = 440 microns. 17-18. Vulvulina pennatula Batsch, 1791. 17. Side view. Recent. Challenger Station 24, off Culebra Island, West Indies (390 fm). Natural History Museum, London. NHM ZF1126. Scale Bar = 432 microns. 18. Apertural view of specimen 17. Scale Bar = 341 microns. 19. Vulvulina spinosa Cushman, 1927. Side view. 19. Holotype. Late Eocene. From the Alaxan Clay, Rio Buena Vista, just South of crossing of Alazan to Moyutla Road, Vera Cruz, Mexico. Collected by T. W. Vaughan, Smithsonian Collection. CC 901. Scale Bar = 234 microns.  (To see enlargement, click on image.)