Published online by Cambridge University Press: 20 January 2017
Antillean petroglyphic art reached its highest development in the technical excellence and lively artistic expression of the many petroglyphs in Puerto Rico. This report is the beginning of a systematic study of Puerto Rican and Antillean petroglyphs which is intended to trace stylistic developments through the Antilles to South American points of origin. Sixty surface prints were made at 13 sites in three regions of Puerto Rico, but only those from Salto Arriba, Icacos, and Caonillas are discussed in detail. The simple and accurate, though time-consuming method of surface printing is fully explained. There are two distinct local types or styles of petroglyphs in addition to the simple curvilinear and abstract designs. The swaddled infant type appears at least as early as Rouse's Period III and represents the beginning of a local petroglyph style. The later Capá type reaches its final stage during Period IV. This study confirms Rouse's placement of the Puerto Rican petroglyphs in his Periods III and IV (A.D. 350-1584), and demonstrates the development of local petroglyph styles parallel to the development and spread of Taino culture.