Hemithirididae is a family of
brachiopods
Brachiopods (), phylum Brachiopoda, are a phylum of trochozoan animals that have hard "valves" (shells) on the upper and lower surfaces, unlike the left and right arrangement in bivalve molluscs. Brachiopod valves are hinged at the rear end, whi ...
belonging to the order
Rhynchonellida
The taxonomic order Rhynchonellida is one of the two main groups of living articulate brachiopods, the other being the order Terebratulida. They are recognized by their strongly ribbed wedge-shaped or nut-like shells, and the very short hing ...
.
Genera:
* ''
Hemithiris''
d'Orbigny, 1847
* †''
Patagorhynchia''
Allan, 1938
* ''
Pemphixina
''Pemphixina'' is a monotypic genus of brachiopod
Brachiopods (), phylum Brachiopoda, are a phylum of trochozoan animals that have hard "valves" (shells) on the upper and lower surfaces, unlike the left and right arrangement in bivalve mollu ...
''
Cooper, 1981
References
{{Taxonbar, from=Q3543243
Brachiopods