Dinoflagellates are aquatic organisms who are most commonly identified by their distinct flagella. These are marine protists that are found in salt and freshwater. They can reproduce rapidly and sometimes cause red tides which poison fish around them. These typically can grow from 5 to 2000 micrometers. https://www.britannica.com/science/dinoflagellate
-These are Radiolaria specimens up to 300 micrometers in length. They are unicellular and under a 400x magnification showing their radial symmetry and novel shapes. This supergroup of protists lack stramenopiles, have no flagellation, nor chloroplasts. Radiolarians are distinguished by their radial symmetry and silicate skeletons.
http://tolweb.org/Polycystine_radiolarians/121189
Field Notes - Clam black and green 30cm