Home What is the scientific name for phytoplankton. The phytoplankton group encompasses a number of micro-organisms, including diatoms and dinoflagellates, which live in the ocean.As there are many species of phytoplankton, there are many scientifi...he phytoplankton group encompasses a number of micro-organisms, including diatoms and dinoflagellates, which live in the ocean. As there are many species of phytoplankton, there are many scientifi...