Can anyone tell me what this is? I am assuming it is a pollen or spore of some sort. They are cropping up in faceal floatations from two different species in our zoo. My thinking is that it is potentially a specific tree or plant that is in that area and no where else in the park. I have seen them periodically over the years and would really like to identify what it is from. This is taken on 10x lens on the microscope, which is unfortunately the highest you can go when using a McMasters slide.
Thanks in advance!