Help identifying dinoflagellates

[Jk696222]

Hey folks, can anyone tell me if this looks like dinoflagellates or something else?

 

[Instigate]

Only surefire way to ID dinos is with a microscope imo. I got mine for $20 locally. Check Craigslist and Offer Up etc.

/With just those pictures I would guess some type of dinos mixed in with some type of algae.