Extended Data Fig. 9: Phytolith study.
From: Hunter-gatherer sea voyages extended to remotest Mediterranean islands
a, Phytoliths image identified in the Phase V deep hearth. a,b, Elongate entire from grass leaf; c,d, Elongate dentate from grass inflorescence; e, Bulliform flabellate from grass leaf; f, Acute bulbosus from grasses leaf; g,h, GSSCP Bilobate from grasses-C4; i–j, GSSCP Rondel from grasses-C3; k,l, Spheroid echinate from Palms. b, Different dynamics of phytoliths identified in the layers that make up the hearth in relation to the number of phytoliths identified as spheroid echinate in each sample. Key: C, Control; TI, Thermal Impact; CR, Combustion Residue. c, Infrared spectra of sediments from some representative samples. Key: C, Control; TI, Thermal Impact; CR, Combustion Residue; Ca, Calcite; Cl, Clay; Qz, quartz; b, thermally altered clay; nb, not thermally altered clay.
