Objects studied in this paper. A: Ontiveros arrowheads; B: Montelirio tholos arrowheads; C: PP4-Montelirio dagger blade (Structure 10.049); D: Montelirio tholos core; E:PP4-Montelirio knapping debris (from UE-345 on the left and UE-919 on the right); F: PP4-Montelirio micro-blades (from Structure 10.015 on the left and Structure 10.043 on the right); G: Montelirio tholos microblades. Image Credit: Miguel Angel Blanco de la Rubia.
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