Stenolaemata - Fenestrida - Polyporidae

Alternative combination: Polypora crassa

Belongs to Protoretepora according to L. S. Zimmerman and R. J. Cuffey 1987

Sister taxa: Protoretepora ampla, Protoretepora haimeana, Protoretepora huadianensis, Protoretepora jabiensis, Protoretepora komichensis, Protoretepora koninckii, Protoretepora lamellata, Protoretepora localis, Protoretepora mutabilis, Protoretepora undulatus