Returning to a strew slide from Kamischev, Russia (previously looked at here). Wide range of species present. Prepared by Watson and Sons Ltd. Olympus BHB microscope using 450nm LED light. 63x Leitz Pl Apo 1.4 objective, oil immersion. Olympus Aplanat Achromat condenser, oil immersion, oblique or brightfield lighting. 2.5x Nikon CF PL photoeyepiece. Monochrome converted Nikon d850 camera. Image stacks prepared in Zerene (Pmax).
Paralia sulcata var. biseriata f. coronata? Oblique lighting. Fairly sure this is a P. sulcata of some type, but the rest of the name I am less sure of.
Pseudopodosira sp.? Oblique lighting. Not sure on this one but does look like one I shared here. Another possibility is the middle part of a Paralia selecta with the rim missing.
Rattrayella triangularis. Oblique lighting, viewed from the underside. Fairly sure on this one.
Rattrayella kamischevensis. Oblique lighting, viewed from the underside. Fairly sure on this one.
Siliceous dinoflagellate cyst? Oblique lighting. Tentative ID based on the one here.
Paralia sulcata var. siberica? Oblique lighting. Fairly sure this is a P. sulcata of some type, but the rest of the name I am less sure of.
Paralia selecta. Oblique lighting. Fairly sure on this one.
Hyalodiscus scoticus? Brightfield lighting. This is a Hyalodiscus of some type, but the species I am less sure of.