Animal bones found on archaeological sites can be connected to the economic structures of the society and what activities the humans performed. During the Merovingian Period and the Viking Age on the island of Gotland there are several sites that have been difficult to interpret. One of these sites is Signallottan which has several finds that are connected to iron working but also a lot of cremated animal bones. The proposed study investigates how the animal bones are connected to the site and what purpose they had. The study also compares the site to other archaeological sites to see how they differ. This will be achieved by analyzing the animal remains found at the site. The material consists of roughly 56 kilograms of bones that were excavated during 2018 and is currently stored in the osteological laboratory in Visby, Sweden. This study leaves some questions open but most likely Signallottan has only had one main purpose. What this purpose is, is still unknown and needs further research.

Cremated bones from animals has been recovered in conjunction with a number of hearths in Visby, Gotland. This find has started a controversial discussion in the archeological field regarding usage of bones as a supplement in iron working. Archeological investigations often tend to overlook the information that could be gained from osteological materials. Animal bones can give us insight and contribute with new perspectives on economics, diet, livestock and much more. The aim of this bachelor is therefore to look closer at the relations between bones and iron working and to establish if the bones were used to enhance the phosphorus levels of the iron. This will be achieved by analyzing cremated bones from the archeological site Visby RAÄ 230. The material will also be compared with previous studies regarding iron working.