Plectorthoidea Explained

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