Triceratium junctum (not Triceratium rugosum as on the label). Current name Biddulphia juncta. 2 examples on the slide. Prepared by Flatters and Garnet Ltd. Mounted in Sirax. Olympus BHB microscope using 450nm LED light. 63x Leitz Pl Apo NA 1.40 objective, oil immersion. Olympus Aplanat Achromat condenser, oil immersion, brightfield lighting. 2.5x Nikon CF PL photoeyepiece. Monochrome converted Nikon d850 camera. 22 images stacked in Zerene (Pmax).