Depending upon the classification system, they are either a separate phylum, Bacillariophyta, or a class within Chrysophyta.
Depending upon the classification system, they are either a separate phylum, Bacillariophyta, or a class within Chrysophyta. Their cell walls are called tests, which are notable for their content of silica, creating cell walls which are almost indestructible. For ten points, name this largest group within the golden algae, whose skeletons make up certain deposits of earth.
Depending upon the classification system, they are either a separate phylum, Bacillariophyta, or a class within Chrysophyta.
{diatom}s