<==o Thecideida `--o Thecideidina |-- †Thecospiroidea `-- Thecideoidea
- Emig, C. C. & Pardo, M. V., 2003-: Divisions of the Brachipoda from families.
–iNet: The BrachNet: Classification des Brachiopoda: http://www.com.univ-mrs.fr/EuroBrachNet/CLASS/Class.htm