Laevitrigonia cineris (FOSSIL) D.P. Kelly, 1988 †
Laevitrigonia dwanikana (FOSSIL) L.R. Cox, 1965 †
Laevitrigonia leblanci (FOSSIL) (Clausen & Wignall,1988 †)
Laevitrigonia troedssoni (FOSSIL) R.V. Melville, 1965 †