Plectorthoidea

A superfamily of brachiopods containing:
 * Family Plectorthidae
 * Family Cremnorthidae
 * Family Cyclocoeliidae
 * Family Eoorthidae
 * Family Euorthisinidae
 * Family Finkelnburgiidae
 * Family Giraldiellidae
 * Family Phragmorthidae
 * Family Platystrophiidae
 * Family Ranorthidae
 * Family Rhactorthidae
 * Family Tasmanorthidae
 * Family Wangyuiidae