Harpoons with a double row of teeth mark the high point of the Magdalenian culture in Western Europe, between 9000-8000 BC, just before the end of the ice age and before Magdalenian culture formed other cultures, such as the Azilian.
The extraordinary bone pieces, where some are decorated with incisions, come from Bora Gran d'en Carreras (Serinyà), and include harpoons with two rows of teeth which date the artefacts from the Upper Palaeolithic period, the era of the last great hunters.