Trinacria swastika from Dosados canyon, California, USA. Marine fossil. Single example on the slide. Mounted in Darax and dated 22-02-2026. Prepared by Michel Haak. 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. 34 images Pmax. Underside view, with the rim upwards towards the coverslip.
Trinacria swastika (J.A.Long, D.P.Fuge & J.Smith) D.M.Harwood 1988. Published in: Harwood, D.M. (1988). Upper Cretaceous and lower Paleocene diatoms and silicoflagellate biostratigraphy of Seymour Island, Eastern Antarctic Peninsula. Mem. Geol. Soc. Amer. 169: 55-130, 24 fig., 6 tables. Page 90. Basionym: Triceratium swastika J.A.Long, Fuge & Js. Smith bis 1946. Published in: Long, J.A., Fuge, D.P. & Smith, J. (1946). Diatoms of the Moreno Shale. Journal of Paleontology 20(2): 89-118, 2 figures, plates 13-19. Page 114, Plate 17, Figure 8.