Late Mesolithic Sicily – Grotta dell'Uzzo

The Late Mesolithic occupation of Grotta dell'Uzzo on north-western Sicily reads like a coastal chronicle. Archaeological data indicate repeated human use of the cave from the early Holocene into the Neolithic transition; radiocarbon dates associated with the sequenced individuals fall between 8798 and 5844 BCE. Grotta dell'Uzzo sits above a rugged coastline where the sea and land met in a rich ecological margin, attracting small, mobile groups who exploited fish, shellfish, birds and terrestrial game. Lithic assemblages from the site show a continuity of microlithic technologies adapted to both marine and terrestrial resource extraction, and faunal remains and shell middens reflect a diet closely tied to the nearshore environment.

Cinematically, one can imagine small bands moving along the shoreline at dusk, fires flickering near cave entrances while nets, traps and bone tools are readied for the night. Archaeologically, this setting places Sicily within the broader tapestry of Mediterranean Late Mesolithic adaptations characterized by seasonal mobility, specialized coastal foraging, and a flexible toolkit. Limited evidence suggests interaction with nearby islands and mainland Italy, but the details remain thin: pebble tools and raw material sourcing hint at networks without yet providing a clear map of exchange. Given the small number of sequenced individuals from the cave, conclusions about population origins must remain cautious; the genetic signals available so far are best interpreted as preliminary notes in a larger prehistoric symphony.

DNA recovered from three individuals at Grotta dell'Uzzo provides a tantalizing, if preliminary, genetic window into Late Mesolithic Sicily. All three sequenced mitochondrial genomes belong to haplogroup U, a lineage commonly found among European hunter-gatherers across the Mesolithic. This maternal signal aligns with archaeological expectations for indigenous hunter-gatherer ancestry in the region and resonates with broader patterns observed in Western Hunter-Gatherer (WHG) populations.

No consistent Y-DNA haplogroup is reported for these three samples in the provided data, so paternal affinities remain unresolved. The small sample count (n=3) necessitates caution: while maternal continuity with European Mesolithic groups is suggested, it would be premature to generalize about population structure, sex-biased mobility, or admixture dynamics. Future sampling could reveal incoming Neolithic farmer admixture, macromesolithic variability, or island-specific substructure that current data cannot detect.

Genetically, these individuals likely occupied a place within the mosaic of postglacial European hunter-gatherers—connected by maternal lineages shared across the continent, but also shaped by local island ecology and mobility patterns. Archaeogeneticists emphasize that with fewer than ten samples, signals are fragile: patterns seen here should be treated as hypotheses to test as more Sicilian Mesolithic genomes are sequenced and integrated with isotope, lithic and faunal datasets.