Syntrophopsis arkansasensis- Syntrophopsis australis
- Syntrophopsis cassinensis
- Syntrophopsis grandis
- Syntrophopsis laevicula
- Syntrophopsis landmani
- Syntrophopsis magna
- Syntrophopsis minor
- Syntrophopsis obscura
- Syntrophopsis polita
- Syntrophopsis praecursor
- Syntrophopsis transversa
- Syntrophopsis utahensis
- Syntrophopsis vetusta