An arrangement of Plagiogramma neogradense (written as neo-gradense on the slide), viewed from the top and from the side. Fossil marine material from Division Hill, Oamaru, New Zealand. Sty.mix (Styrax mix) mountant, and dated April 1966. Prepared by ECP Bone. Olympus BHB microscope using 450nm LED light. 63x Leitz Pl Apo 1.4 objective, oil immersion. Olympus Aplanat Achromat condenser, oil immersion, oblique lighting. 2.5x Nikon CF PL photoeyepiece. Monochrome converted Nikon d850 camera. 51 images stacked in Zerene (Pmax).
Plagiogramma neogradense Pantocsek 1886. Published in: Pantocsek, J. (1886). Beiträge zur Kenntnis der Fossilen Bacillarien Ungarns. I. Theil Marine Bacillarien. pp. 1-74, 30 pls. Nagy-Tapolcsány: Buchdrucherei von Julius Platzko. Page 33, Plate 8 Figures 63 and 71, Plate 28 Figure 285.