Panthalassa (Greek meaning 'all seas'), also known as the Panthalassic Ocean, was the vast global ocean that surrounded the supercontinent Pangaea, during the Paleozoic and the early Mesozoic eras.
Inside the "V" was Panthalassa, outside of the "V" was the Pan-African Ocean and remnants of Mirovia Ocean.
Panthalassa's oceanic plate remnants may be the Juan de Fuca Plate, Gorda plate, Cocos Plate, and the Nazca plate, all four of which, were part of the Farallon Plate.
Panthalassa was discovered by astrometry during the Interplanetary age by Julie Denley and identified as a giant water rich planet with an oxygen-bearing atmosphere.
Harld Seeger, now Permanent Speaker, invited the new race to join in the development of the vast waters of Panthalassa, and soon the largest population of Lignosagittae (also known as Gnosags) in the Galaxy were to be found in the deep waters of this planet.
Panthalassa now became a vast world ocean civilisation, with the intense personality of 1,1,32 driving the many species of water dwelling creature to ever-greater achievements.