Research on Carta Marina

The Carta Marina meaning Map of the Sea was created by Olaus Magnus, a Swedish geographer. In 1539 the map was printed in Venice and was made up with 9 separate sheets each measuring 55 x 40 cm. All together the map measured 125cm high by 170 wide. 

 Carta Marina 1st edition by Olaus Magnus

Full view of the Map can be seen here

In 1572 a second edition was printed by Antoine Lafrery 

Full view of the Map can be seen here

The sea monsters in this map are depicted by sailors in stories told on their journeys across the sea, which are of terrible giant beasts attacking ships.