Petroneis granulata (Bailey) Mann ex Round et al
Division: Chromophyta
Class: Bacillariophyceae
Order: Bacillariales
Suborder: Bacillariineae
Family: Naviculaceae Kützing
Genus: Petroneis Stickle et Mann ex Round et al.
Scientific name: Petroneis granulata (Bailey) Mann ex Round et al.