Species
Orthosphaeridium densigranosum Kjellström, 1971
Synonymy list
1971 Orthosphaeridium densigranosum n. sp. — Kjellström , pp. 28-30, fig. 19
Classification
| Organism group | Biota |
| Protista | |
| Acritarcha | |
| Genus | Orthosphaeridium |
| Species | bispinosum |
| chondrododora | |
| densigranosum | |
| densiverrucosum | |
| insculptum | |
| latispinosum | |
| octospinosum | |
| rectangulare | |
| ternatum | |
| vibrissiferum |