frustulia frustulia frustulia is a genus of diatoms belonging to the family amphipleuraceae. frustulia scientific classification domain: eukaryota clade: diaphoretickes clade: sar clade: stramenopiles phylum: gyrista subphylum: ochrophytina class: bacillariophyceae order: naviculales family: amphipleuraceae genus: frustuliarabenhorst, 1853 extant species frustulia rhomboides frustulia vulgaris the genus was first described by gottlob ludwig rabenhorst in 1853. species: frustulia rhomboides frustulia vulgaris