👉 Megaviricetes are a group of protists that belong to the kingdom Eukaryota and are characterized by their large size, which can reach several hundred micrometers in diameter. They have an extremely long cell wall made up of protein fibers, with their cells often containing multiple layers of microtubules for rigidity and function. These organisms primarily live in marine environments and include species that range from the small, mesophilic dinoflagellates to large, thermophil
