The figurines are strikingly similar to the ones found on the Åland islands. According to archaeologist Niklas Björck (Riksantikvarieämbetet) they can be dated to around 2500 BC. This would make them approximately 800 years younger than the figurines from Vantaa Jokiniemi.
The find site is described as a seal hunting camp in the outer archipelago. outside the parish of Åkersberga.
More about the find here (in Swedish)