Basionym Name:Patellaria cretacea DC., in Lamarck & de Candolle, Fl. franç., Edn 3 (Paris) 2: 353 (1805)
Homotypic synonyms:Lecidea contigua * cretacea (DC.) Torss., Enum. Lich. Byssac. Scandin. (Upsaliae): 35 (1843)Lichen peltatus * cretacea (DC.) Lam., Encycl. Méth. Bot., Suppl. (Paris) 3(2): 389 (1813)