Borre, Jellinge, Mammen, Ringerike and Urnes styles, plus the lion-derived backward looking "great beast", the intertwining of serpentine beasts and the fascination with three fold rotational symmetry (triskele).
For discussions on the possible meaning of some of the imagery exhibited by artefacts shown here see:
In addition to the Scandinavian designs, there are Scandinavian-derived styles ( for example in oval and penannular brooches) seen amongst the Baltic and Finnic neighbors to the east and northeast as well as the distinctive Finnic animal styles of the Staraya Ladoga region.