Phytoplankton Diagram: Diatoms and Dinoflagellates Explained #3513318 (License: Personal Use)

This black-and-white scientific illustration depicts various phytoplankton forms, emphasizing structural diversity: radial symmetry in centric diatoms, elongated pennate diatoms, and armored dinoflagellates with flagella and thecal plates. Each organism is rendered with fine detail to showcase distinguishing features such as frustules, chloroplasts, and motility structures. The diagram serves as an educational tool for identifying microscopic primary producers in aquatic ecosystems.

Used in academic textbooks, marine biology courses, and environmental science resources to teach plankton taxonomy and ecology; matches user intent for learning or referencing phytoplankton morphology.