*Dinophyceae* A class of Pyrrophyta, comprising algae that are unicellular and have two flagella (thread-like structures) of unequal length. Most dinoflagellates belong to this class and the cysts (dinocysts) are useful in biostratigraphy.

Dinophyceae: This is the most extensive class of dinoflagellates, encompassing a wide range of species. Members of this class are primarily marine, but some freshwater species also exist. They exhibit diverse modes of nutrition, including photosynthesis, heterotrophy, and mixotrophy.

Dinophyceae is a class of alveolates. There are 3550 species of Dinophyceae, in 510 genera and 67 families. It includes groups like Adnatosphaeridiaceae. They are consumers.

DINOPHYCEAE These organisms are important members of the plankton in both fresh and marine waters, although a much greater variety of forms is found in marine members. Generally the Dinophyceae are less important in the colder polar waters than in warmer waters.