Trigonotretidae is an extinct family of articulate brachiopods belonging to the order Spiriferida.
These stationary epifaunal suspension feeders lived in the Carboniferous and Permian periods, from 360.7 to 252.3 Ma.
Genera
- Aperispirifer <small>Waterhouse, 1968</small>
- Betaneospirifer <small>Gatinaud, 1949</small>
- Blasispirifer <small>Kulikov, 1950</small>
- Brachythyrinella
- Cartorhium <small>Cooper and Grant, 1976</small>
- Costatispirifer <small>Archbold and Thomas, 1985</small>
- Crassispirifer <small>Archbold and Thomas, 1985</small>
- Cratispirifer <small>Archbold and Thomas, 1985</small>
- Fasciculatia <small>Waterhouse, 2004</small>
- Frechella
- Fusispirifer <small>Waterhouse, 1966</small>
- Gibbospirifer <small>Waterhouse, 1971</small>
- Gypospirifer <small>Cooper and Grant, 1976</small>
- Imperiospira <small>Archbold and Thomas, 1993</small>
- Kaninospirifer
- Lepidospirifer <small>Cooper and Grant, 1969</small>
- Neospirifer <small>Fredericks, 1919</small>
- Occidalia <small>Archbold, 1997</small>
- Pondospirifer <small>Waterhouse, 1978</small>
- Quadrospira <small>Archbold, 1997</small>
- Saltospirifer <small>Cisterna and Archbold, 2007</small>
- Septospirifer <small>Waterhouse, 1971</small>
- Sulciplica <small>Waterhouse, 1968</small>
- Trigonotreta <small>Koenig, 1825</small>
References