| Litostroma Temporal range: | |
|---|---|
| Scientific classification | |
| Domain: | Eukaryota |
| Supergroup: | Archaeplastida |
| Clade: | Viridiplantae |
| Genus: | Litostroma Mamay, 1959 |
| Species | |
|
L. oklahomense Mamay, 1959 | |
Litostroma is a genus of marine alga that may be a red, although green and brown affinities have also been proposed. It consists of single-cell-thick thalli that reached about 6 mm in diameter and 140 μm thickness.