| Including | : | †Alpinothalamiidae (Family) Senowbari-Daryan, 1990 | |
Ref: R.M. Finks et al., 2004: table 1 (p. 794). [inferred] |
| Including | : | †Cassianothalamiidae (Family) Reitner, 1987 | |
Ref: R.M. Finks et al., 2004: table 1 (p. 794). [inferred] |
| Including | : | †Pisothalamiidae (Family) Senowbari-Daryan & Rigby, 1988 | |
Ref: R.M. Finks et al., 2004: table 1 (p. 794). [inferred] |