cana (radiolarian) cana (radiolarian) cana is an extinct genus of prehistoric radiolarians in the extinct family pantanelliidae. the species c. elegans is from the cretaceous of northwest turkey. cana scientific classification domain: eukaryota (unranked): sar (unranked): rhizaria phylum: retaria subphylum: radiolaria class: polycystina order: spumellaria family: †pantanelliidae genus: cana