Fecal biomarkers and micromorphological indicators of sheep penning and flooring at La Fortaleza pre-Hispanic site (Gran Canaria, Canary Islands).

This study explores the lipid content and micromorphological features of sediment samples from two dwelling structures at the pre-Hispanic site of La Fortaleza in Santa Lucía de Tirajana (Gran Canaria, Spain). Previous field identification of possible sedimentary excrements inside the dwellings motivated chromatographic fecal biomarker analysis and micromorphology. The micromorphological samples reveal a complex dung-rich stratified sequence involving different layers of mixed composition, including reworked dung, clay, wood ash, and domestic refuse.