| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Tetraphormis
Taxonomy
Tetraphormis was named by Haeckel (1881) [Sepkoski's age data: K R]. It is extant.
It was assigned to Sethophatnidae by Loeblich and Tappan (1961); and to Nassellaria by Sepkoski (2002).
It was assigned to Sethophatnidae by Loeblich and Tappan (1961); and to Nassellaria by Sepkoski (2002).