After Emig & Pardo, 2003- ["The BrachNet"], and Benedetto, 2007
<==o †Orthida Schuchert & Cooper, 1932 |?- †Bethia serraticulma Sutton, Briggs, Siveter & Siveter, 2005 |--o †Orthidina Schuchert & Cooper, 1932 | |--o †Orthoidea | | |-- †Productorthidae | | `--o †Heterorthidae | | `--o †Tarfaya Havlícek, 1971 | | |?- †T. grandis (Harrington, 1938) Villas & Herrera, 2004 [Eoorthis grandis Harrington, 1938; Nanorthis grandis (Harrington) Castellaro, 1963; Nanorthis? grandis (Harrington) Benedetto, 2007] | | `-- †T. marocana Havlícek, 1971 | `--o †Plectorthoidea Schuchert & LeVene, 1929 | |?- †Diplonorthis Mitchell, 1977 | |?- †Cyrtonotella Schuchert & Cooper, 1931 | |-- †Nanorthidae Havlícek, 1977 | `--o †Euorthisinidae Havlícek, 1977 | |?- †Lesserorthis havliceki Benedetto, 2007 | |-- †Protorthisina simplex Benedetto, 2007 | `--o †Euorthisina Havlícek, 1950 | |-- †E.? nazarenensis Benedetto, 2007 | |-- †E. moesta (Barrande, 1879) [Orthisina moesta Barrande, 1879] [type] | |-- †E. kobayashii Havlícek & Branisa, 1980 [incl.? E. orthiformis Havlícek & Branisa, 1980 (Benedetto, 2007)] | |-- †E. parva Xu & Liu, 1984 | `-- †E. paucicostata Xu & Liu, 1984 `--o †Dalmanellidina |-- †Dalmanelloidea `-- †Enteletoidea
Reference(s):
- Benedetto, J. L., 2007: New Upper Cambrian-Tremadoc rhynchonelliformean brachiopods from northwestern Argentina: evolutionary trends and early diversification of plectorthoideans in the Andean Gondwana.
–Journal of Paleontology: Vol. 81, #2, pp. 261-2885 - 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 - Sutton, M. D., Briggs, D. E. G., Siveter, D. J. & Siveter, D. J., 2005: Silurian brachiopods with soft-tissue preservation.
–Nature: Vol. 436, pp. 1013-1015