Cranial morphological diversity, microevolution and occupation of the Ribeira de Iguape Valley by human groups in the Holocene

• Grant number: 20/07873-3
• Support type: Scholarships in Brazil - Scientific Initiation
• Effective date (Start): October 01, 2020
• Effective date (End): September 30, 2021
• Field of knowledge: Humanities - Archeology - Prehistoric Archaeology
• Principal Investigator: Maria Mercedes Martinez Okumura
• Grantee: Thomas Massayoshi Kohatsu
• Home Institution: Instituto de Biociências (IB). Universidade de São Paulo (USP). São Paulo , SP, Brazil
• Associated research grant: 18/23282-5 - Change and continuity in prehistoric human groups from Ribeira de Iguape Valley (São Paulo and Paraná): applying evolutionary theory to bioarchaeology and material culture, AP.JP

Abstract

The construction of mounds was a common habit in several prehistoric populations around the world. In Brazil, there are several prehistoric prehistoric sites that can be described as mounds, among them, coastal shellmounds, Pantanal embankments, Cerritos in the south of the country and riverine shellmounds. In relation to the latter, the Ribeira de Iguape River Valley stands out as a region of great concentration of these archaeological sites. This region is currently being studied in the project Continuity and Change in Prehistoric Groups in the Ribeira de Iguape Valley (São Paulo and Paraná): Applications of Evolutionary Theory to Bioarcheology and Material Culture Studies, coordinated by Mercedes Okumura, and the present project is one of several related to the aforementioned project. This Scientific Initiation Project aims to explore the biological affinity among individuals associated with riverine shellmounds and other Brazilian prehistoric groups, including those related to coastal shellmounds and sites from the interior of the country. This comparison will be made through the analysis of craniometric data (54 linear measures described by W. W. Howells) and the application of multivariate statistical methods different from those used in previous works. In addition, taking into account that the Ribeira de Iguape Valley presented three distinct periods of occupation throughout the Holocene, it is expected to test the association between human groups in the Ribeira de Iguape Valley from a chronological point of view as well.