Protorthida

{{Short description|Extinct order of marine lamp shells}}

{{Automatic taxobox

| taxon = Protorthida

| subdivision = {{nested taxon list

|Superfamily Protorthoidea||{{taxon list

|Protorthidae|

|Arctohedridae|

|Leioriidae|

}}|Superfamily Skenidioidea||{{taxon list|Skenidiidae}}

}}

}}

Protorthida is an extinct order of Rhynchonellate brachiopods containing the taxa:{{TreatiseH}}

• Superfamily Protorthoidea
• Family Protorthidae
• Family Arctohedridae
• Family Leioriidae
• Superfamily Skenidioidea
• Family Skenidiidae