Puerto Hormiga archaeological site
Its traces provide evidence of a semi-sedentary agricultural society in the making, whose members were involved in hunting and gathering shellfish. Middens of shells were found there. According to other findings, such as ceramic remains and abundant stone material, the nomadic peoples were beginning to complement their activities with small-scale horticulture and agriculture.
A shell ring of the Late Archaic period has been described at Puerto Hormiga. The Puerto Hormiga ring is composed primarily of clam shells, and is located in a marsh. It has an outside diameter of 280 feet (85 m), a height of about 4 feet (1.2 m), and the base of the ring mound is 52 feet (16 m) to 75 feet (23 m) wide. It has a clear interior plaza. Sherds of fiber-tempered and sand-tempered pottery, as well as stone tools, were found associated with the shell ring. The earliest have been dated to 3794 BC. The fiber-tempered pottery is "crude", formed from a single lump of clay. Sand-tempered coiled ceramics have also been found at Puerto Hormiga.
- Clark and Gosser:210-11
- Peregrine and Ember:149, 151
- Clark, John E. and Dennis Gosser (1995). "Reinventing Mesoamerica's First Pottery". In William K. Barnett and John W. Hoopes (ed.). The Emergence of Pottery: Technology and Innovation in Ancient Societies (PDF). Smithsonian Institution Press. pp. 209–219. ISBN 978-1-56098-516-7. Retrieved 22 November 2011.
- Hemmings, E. Thomas (1970). "Emergence of Formative Life on the Atlantic Coast of the Southeast". Research Manuscript Series, Book 6. University of South Carolina. Retrieved 19 November 2011.
- Ember, Melvin; Peregrine, Peter Neal, eds. (2001). Encyclopedia of Prehistory. 5 : Middle America. Springer. p. 290. ISBN 0-306-46259-1 https://books.google.com/books?id=LnZn1kfWeL8C&dq=Adrian+Maya+Rodriguez&ie=ISO-8859-1&source=gbs_gdata. Missing or empty
- Walthall, John A. (1980). Prehistoric Indians of the Southeast: Archaeology of Alabama and the Middle South. Tuscaloosa, Alabama: The University of Alabama Press. pp. 81–83. ISBN 0-8173-0552-1.