Orthoidea is a

superfamily SUPERFAMILY is a database and search platform of structural and functional annotation for all proteins and genomes. It classifies amino acid sequences into known structural domains, especially into SCOP superfamilies. Domains are functional, str ...

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 ...

containing the families: * Family Orthidae * Family Anomalorthidae * Family Bohemiellidae * Family Glyptorthidae * Family Hesperonomiidae * Family Hesperorthidae * Family Lycophoriidae * Family Nanorthidae * Family Orthidiellidae * Family

Plaesiomyidae Plaesiomyidae is a family of extinct lamp shells belonging to the order Orthida. Fossil record Fossils of Plaesiomyidae are found in marine strata from the Ordovician until the Silurian The Silurian ( ) is a geologic period and system spann ...

* Family Poramborthidae * Family Productorthidae * Family Whittardiidae

References

Rhynchonellata {{Brachiopod-stub