Species (10)
- Askoella jansonni Fenchel 1965
- Gymnodinioides inkystans Minkiewicz 1912
- Gymnodinium inkystans Minkiewicz 1912
- Askoella helistoma Jankowski 1967
- Askoella heliostoma Jankowski 1967
- Askoella janssoni Fenchel 1965
- Gymnodinioides sp. Minkiewicz 1912
- Terebrospira chattoni Bradbury, Clamp & Lyon 1974
- Gymnodinioides zonatum
- Jeppsia calani Jepps 1937